问题

I was on the point of going to bed ________ MrZhang rang
A:as
B:when
C:while
D:and
B:when
C:while
D:and
正确答案是:
同类题型
Not only he but also we __________right.He as well as we__________right.
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Must I wait for you here?—No, you ______.
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