问题

If you want to succeed, you have to it[ ]
A: work hard with
B: work hard at
C: work on
D: work
B: work hard at
C: work on
D: work
正确答案是:
同类题型
–Amazing!You ____________ wear slippers at work–Don’t you know it’s a fashion
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__________ to sun, rain and wind for a long time, the stone split.
The doctor _______ on the man and _______ saved his life.
_____ we will be sent abroad for further study makes us really excited. [ ]