问题

My colleague has been recovering gradually since the operation, and it wont’ be long ______ he comes back to work
A:before
B:since
C:after
D:when
B:since
C:after
D:when
正确答案是:
同类题型
Will you please give the dictionary to Jane—Sure. I’ll give it to her ________ she arrives here.
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I don’t believe you’ve already finished reading the book— I ______it to you this morning!