用括号内所给动词的适当形式填空。

________(not throw)litter everywhere, children．

用括号内所给动词的适当形式填空。

The hot water must ________(keep)away from the children．

用括号内所给动词的适当形式填空。

Computers ________(control)by programs．

用括号内所给动词的适当形式填空。

There ________(be)a class meeting this afternoon, isn't there?

用括号内所给动词的适当形式填空。

He won't go home until he ________(finish)the work．

用括号内所给动词的适当形式填空。

Listen! The radio says something bad ________(happen)last night．

用括号内所给动词的适当形式填空。

－________ you ________(hear)from him recently？

－Not yet．

用括号内所给动词的适当形式填空。

The audience ________(clap)their hands at the theatre at present．

用括号内所给动词的适当形式填空。

It is very important ________(not give)your goldfish too much food．

用括号内所给动词的适当形式填空。

There was a loud noise while Lily ________(listen)to music in her study．