I want _____ the US one day. (   )

A．to go to

B．go to

C．to go

I need a pen __________a letter. (    )

A．writes

B．write

C．to write

按要求完成句子
cough  fly   make    build   turn
1. Spring is the best time _________ kites.
2. My dog is good at _________ camps out of sticks.
3. Who ________ breakfast for you every morning?
4. You’d better give up smoking, or you’ll keep ________ day and night.
5. It’s said it __________ colder in the late afternoon.

—What are you doing?(   )
—I am trying to________the bike.

A．riding

B．ride

C．rides

D．rided

It's fun ________ with my toys. (   )

A．play

B．played

C．to play