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9ASPCITY SOLUTIONS
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UNIT 3 • R.W. TEST REVIEW

Solve the city.
Master the language.

Five missions. Different challenges. Instant feedback. Your progress stays on this device.

🏙️JAKARTAMEGACITY CASE FILE
MISSION 01

Vocabulary in Context

Do not choose a word only because you remember its meaning. Read the whole sentence. Look for clues before and after the gap.

How to use context clues

1Read around it

Read the complete sentence, not only the gap.

2Find the clue

Look for a definition, example, contrast, cause, or result.

3Check the grammar

Does the gap need a noun, verb, adjective, or phrase?

4Test the word

Put it in the sentence. Does the whole idea make sense?

Example: The city centre is very dense; many people and buildings are crowded into a small area. The words after the semicolon explain “dense.”

A

Context Gap-Fill

Choose from the word bank. Two words are extra.

B

Clue Dash

Match each context clue to the best word. Build a streak before time runs out.

TIME 60STREAK 0

Press Start Game when you are ready.

MISSION 02

Compound Adjectives

Combine words to create one description.

Why do we use them?

Compound adjectives give a precise description without a long explanation: a two-hour journey, a well-planned system.

How do we form them?

number + singular noun → a ten-minute walk
adverb/adjective + participle → a well-known solution
fixed compound → a state-of-the-art train

A

Precision Check

Choose the best answer.

B

Hyphen Forge

Tap the tiles in order to build the compound adjective.

MISSION 03

Past Simple

Report actions and situations that finished in the past.

Why do we use it?

Use past simple for a finished event, a sequence of finished actions, or a past state. Time clues include yesterday, last year, in 2020, ago.

How do we form it?

positive subject + past verb: The city built a bridge.
negative subject + did not + base verb.
question Did + subject + base verb?

A

Timeline Check

Choose the correct form.

B

Verb Rescue

Sort the verbs into regular and irregular past forms.

MISSION 04

Present Perfect

Connect a past action or experience to the present.

Why do we use it?

Use present perfect for an experience with no finished time, a recent result, or something continuing until now. Clues include ever, never, already, yet, since, for, so far.

How do we form it?

have/has + past participle
I/you/we/they have studied.
He/she/it has studied.

A

Connection Check

Choose the correct form.

B

Time-Signal Scanner

Send each time phrase to Past Simple or Present Perfect.

MISSION 05

Reading: Jakarta on the Move

Read for the big idea first, then return to the text for evidence.

Reading strategy

TTopic

The person, place, thing, or issue discussed.

MMain idea

What the writer mainly says about the topic.

SSupporting detail

A fact, example, reason, or explanation proving the main idea.

?T / F / NG

True = same meaning. False = opposite. Not Given = the text does not say.

Main-idea tip: Ask, “What idea connects most paragraphs?” An answer that describes only one example is usually too narrow.

PROBLEM–SOLUTION TEXT

Jakarta on the Move: Can a Megacity Escape Its Traffic?

Every weekday morning, millions of people begin moving across Jakarta, Indonesia’s enormous capital region. Motorcycles weave between cars, buses wait in long lines, and commuters watch the minutes pass. Jakarta is a megacity: its wider urban area is home to more than 30 million residents. Many people live in suburbs outside the centre but travel inward for work or education. This concentration of jobs and services creates opportunity, yet it also places fierce pressure on the transport system.

The most visible problem is traffic congestion. For decades, Jakarta spread out while the number of private vehicles grew rapidly. Roads did not grow at the same rate. A journey that should take thirty minutes can sometimes last two hours. Unpredictable travel makes workers late and reduces the time families spend together. It also affects businesses. Deliveries arrive slowly, employees lose productive hours, and companies must pay more to move goods through the city.

Traffic creates environmental and health problems as well. Vehicles burn fuel while moving slowly or waiting, releasing gases and tiny particles into the air. Poor air quality can make breathing conditions worse and can be especially harmful to children and older residents. Constant engine noise adds stress. The problem is not separate from climate change either: transport is an important source of the city’s carbon emissions. Simply constructing more roads may provide temporary relief, but wider roads often encourage more people to drive. Soon, the new space fills again.

Jakarta has therefore started building a more connected public-transport network. The city opened its first modern Mass Rapid Transit line in 2019. The MRT carries passengers on trains that avoid road traffic, making journey times more reliable. The city has also expanded the TransJakarta bus system. Special bus lanes allow many buses to move past crowded cars, although other vehicles sometimes enter these lanes and lower their effectiveness. Commuter rail and a newer light-rail system provide additional choices for people travelling from different parts of the metropolitan area.

Building transport is only one aspect of the solution. People must be able to reach stations safely and easily. Jakarta has improved some pavements, crossings, bicycle lanes, and connections between services. A traveller should be able to leave a train, find the correct bus, and pay without facing a confusing barrier. Integrated fares and clear information can make public transport feel like one system rather than several separate systems. More housing near stations could also shorten journeys and reduce the need for cars.

Technology can help manage the roads that remain. Traffic-control centres can study live information and adjust signals when one route becomes unusually dense. Navigation apps can warn drivers about construction or an occasional accident. However, technology cannot create unlimited road space. City leaders have discussed policies that make driving into the busiest areas more expensive. Such policies may reduce traffic, but they must be introduced carefully. Lower-income residents need affordable and dependable alternatives before restrictions become stronger.

The challenge is made more complicated by geography and government. Jakarta contains canals and rivers and is vulnerable to flooding, which can interrupt roads and railways. The urban area also crosses several local government boundaries. A route may begin in one city and end in another, so leaders must cooperate instead of planning each area separately. Projects are expensive and construction can temporarily make congestion worse. Residents may lose patience before the benefits appear.

Jakarta has not solved its traffic problem, and no single project will do so. Still, the city has changed its approach. Instead of depending only on wider roads, it has invested in trains, busways, safer walking routes, better connections, and smarter management. Success will depend on whether these choices become reliable, affordable, and convenient enough for millions of people. The central lesson is clear: a growing megacity cannot build its way out of congestion with roads alone. It must give residents practical reasons to choose other ways of travelling.

A

Reading Evidence Check

Answer in text order. Return to the passage and prove each choice.

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