SB7 p46 - text

The two sisters may look alike, but their personalities can ____________.

• have no

• be very different

• change slightly

• be exactly the same

The river in that city used to be clean, but now it ____________.

• is polluted

• are filthy

• become toxic

• are polluted

If you study hard, you will ____________ pass the exam.

• could

• can

• be able to

• be able

Many people ____________ that aliens from other planets actually exist.

• believe

• deny

• doubt

• assume

I need to work hard to ____________ to buy a new car.

• borrow

• have enough money

• get

• give money

I ____________ that the factory will ____________ a ____________ in the future.

• believe... cause ... pollution

• believe ... cause ... snowstorm

• hope ... cause ... pollution

• know ... cause ... dirt

We need to find alternative ____________ for cars, machines and factories to reduce pollution.

• traffic jam

• water

• fuel

• plastic

Some animals and plants don't ________ already. They disappeared many years ago.

• exist
• live

• be

• survive

Oh, no! I'm late for school. __________ are so bad today.

• Traffic jams

• Roads

• People

• Weather