用所给动词的适当形式填空

Helen ________(have)to work at the age of fourteen because her father died．

用所给动词的适当形式填空

Please be careful．The bus ________(come)．

用所给动词的适当形式填空

You’d better ________(not leave)school before our teacher ________(come)

用所给动词的适当形式填空

Everybody ________(know)the answer except you．

用所给动词的适当形式填空

Don’t go out．It ________(rain)heavily．

用所给词的适当形式填空

The boy could look after ________(he)when he was very young．

用所给词的适当形式填空

Can you tell me who is the ________(write)of that book?

用所给词的适当形式填空

Tigers are very ________(danger), but they are in ________(danger), we should protect them．

用所给词的适当形式填空

You must take the following ________(act)to protect giant pandas．

用所给词的适当形式填空

Here is one of the best ________(picture)．