Please tell him ______ back. （   ）

A．calls

B．to call

C．calling

Do you want ________ (to go/ going) to the park?

根据句意写单词或用所给单词的适当形式填空。
【小题1】It’s time _____ go to school.
【小题2】The tiger is _____ (danger). Don’t go near it.
【小题3】Don’t _____ (feed) the animals.
【小题4】You are _____ (safe) at school.

I'd like _______have a lot of clubs. （    ）

A．in

B．on

C．to

读句子并选出合适的词填空

A．on

B．in

C．by

D．from

E．to

F．of

【小题1】My family is very important________me.I love my family.
【小题2】The smoke ________the cars and buses makes the air dirty.
【小题3】—How did you go to Pairs for your holiday?
—I went there ________train.
【小题4】We get a lot of things________ trees.
【小题5】It keeps them high________ the sky.
【小题6】We live________ the Earth.The Earth is our home.
【小题7】What should we do________keep the air clean?
【小题8】Take a piece________cloth.