题目内容

---Is Mr Brown driving here?---I'm not sure. He come by train.

A. may
B. shall
C. need
D. must

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---You will be lateyou hurry up.---Don't worry. I still have enough time.

A. because
B. until
C. unless
D. if

The night of this room wasdim for Tomread last night.

A. too; to
B. enough ;to
C. such；that
D. so；that

I wanted to do my homework last night, but ended upto the cinema.

A. go
B. to go
C. going
D. went

求函数y=sin3x的导数

A. cos3x
B. 3sin3x
C. 3cos3x
D. sin3x