You can take_____ of the two toy cars and leave the other for your brother.

A.all B.both C.either

To keep our friendship, we should not just think about _____.

A.ourselves B.yourself C.myself

To keep children away from danger, we warn parents_____ children at home alone.

A.not leave B.to leave C.not to leave

My math teacher lives an active life. She looks as _____as she was ten years ago.

A.young B.younger C.the youngest

English is the most _____ spoken language in the world.

A.quickly B.carefully C.widely

—Can you come to my birthday party on Sunday, Mike?

—Sorry, I_____. I have to look after my little sister.

A.can’t B.may C.mustn’t

Look at the trees on both sides of the street. They _____ last spring.

A.planted B.are planted C.were planted

The number of people in the city _____ about seven million now.

A.is B.was C.are

—The summer vacation is coming. Are you going to have a part-time job?

—Yes. I think I shouldn't always _____my parents.

A.look for B.look after C.depend on

—When will we begin our trip?

—We'll set out _____our teacher arrives.

A.as soon as B.so long as C.as far as