问题

If a computer crashes, you will lose the file you ______ on if you don’t save it early enough. [ ]

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

正确答案是：

同类题型

switch to more low-carbon energy, I think, is_____——I agree with you

Her sister ______ a rich man. They ______ for twenty years.

－Can he _____________ the soccer well－No, he can’t.

Here is a _______.

Heisverypopularamonghisstudentsashealwaystriestogetthem________inhislectures [ ]