Why don't you ________?The math teacher is coming．

A．stop to talk

B．stop talking

C．to stop to talk

D．to stop talking

I ________ find a good gift for my mother．Tomorrow is her birthday．

A．needn't

B．must

C．shouldn't

D．had to

What can help the police solve a case or find out who is the real criminal?

A．Fingerprints

B．Footprints．

C．Blood．

D．A．B and C

I know ________ man, who is one of ________ most famous film stars．

A．/, a

B．a, the

C．/, the

D．the, a

There ________ elephants if we don’t protect them．

A．won’t be any

B．will have no

C．won’t be some

D．will be some

Baby tigers ________ to catch other animals if they watch their mothers．

A．learn how

B．will learn what

C．learn why

D．learn when

If I walk ________ a rainforest, I will see some strange birds．

A．over

B．under

C．through

D．towards

We are going to make wild animal reserves ________ and build more reserves．

A．big

B．bigger

C．smaller

D．small

At first, the baby ________ her mother’s milk for ________ to 6 hours a day．

A．drank; up

B．drinks; big

C．will drink; up

D．drink; large

At four months, the baby panda go outside her home ________ the first time．

A．at

B．for

C．of

D．in