题目内容
动词填空
The young workers ______(teach) how to operate the machine all morning.
Do you know what the accident ______ (cause) by?
If you work harder, you are sure ________ (pass) the next examination.
Have you any difficulty ______(work) out the maths problem．
The TV set hasn’t worked for weeks. Why don’t you have it ______ (repair)?
The more you practise,the greater progress you ______ (make).
