问题描述:
It will be a long time ___________ Tom _________ his work.应该选哪个,
It will be a long time ___________ Tom _________ his work.
A.before;finishes
B.when;finishes
C.since;finished
It will be a long time ___________ Tom _________ his work.
A.before;finishes
B.when;finishes
C.since;finished
问题解答:
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