It's fun ______ (go) on a school trip.

介词填空题。
1. You’re good _____ math.
2. She often works _____ holidays.
3. He takes people ______ different places.
4. They make cars _____ us.
5. Lily want _____ be a scientist.

Let’s go to the cinema ________ a  film. (　　)

A．to read

B．to see

C．to look

Don't the windows when you leave the classroom. (   )

A．remember closing

B．remember to close

C．forget closing

D．forget to close

用所给单词的适当形式填空。
【小题1】Water is very________(use).
【小题2】We use wood________(make) chairs.
【小题3】Trees help________(keep) the air clean.
【小题4】________(protect) the Earth, we should________(save) water.
【小题5】Look! They________(do) a project.
【小题6】Please tell________(they) about Christmas.
【小题7】He starts________(sing).