问题

You’d better exercise at least three times a week ______ you can keep fit.

A:so that
B:only if
C:as though
D:in case;

正确答案是：

同类题型

The director is going on business next week and the department will be left ______Jack.

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Must I learn all these words by heart? —No,you ______. It’ll be fine if you copy them inyour exercise books.

Where’s that report?—I brought it to you _______ you were in Mr.Black’s office yesterday