He asked if she ________ Jack．

A．knows

B．knew

C．knowing

D．known

The teacher said that light ________ faster than sound．

A．travel

B．to travel

C．traveled

D．travels

Could you tell me ________?

A．where is the nearest hospital

B．where the nearest hospital was

C．where the nearest hospital is

D．where was the nearest hospital

It’s ________ here．

A．quite quiet

B．quiet quite

C．much quiet

D．much quite

Tom didn’t understand the text ________ the teacher explained it to him．

A．when

B．while

C．until

D．since

We’ll go to the park if it ________．

A．won’t rain

B．don’t rain

C．doesn’t rain

D．not rain

If the green light isn’t on, ________ a minute．

A．waiting

B．to wait

C．waited

D．wait

I’m very tired, Let’s stop ________ a rest．

A．have

B．having

C．to have

D．had

He doesn’t know ________ they will plant trees on Saturday or not．

A．weather

B．whether

C．if

D．that

Hobbies can make us ________ as a person．

A．grow

B．grew

C．growing

D．to grow