问题

Remember to save what you ________ on once in a while in case the computer suddenly crashes.[ ]

A: work
B: will work
C: are working
D: worked

正确答案是：

同类题型

Did you have a party last nightYes. Not only we but also my teacher Mr Wu. ________fun at the party.

The medicine works more effectively ______ you drinksome hot water after taking it

Beyond the river_____.

Armed with the information you have gathered, you can ______ to prepare your business plan.

He often makes his sister .