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;finishesB.when;finishesC.since;finished

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;finishesB.when;finishesC.since;finished
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.应该选哪个,It will be a long time ___________ Tom _________ his work.A.before;finishesB.when;finishesC.since;finished
你好.答案是A
== Tom will take a long time to do his work.
== Tom will spend much time doing his work.

A

A，
他完成工作还有很长时间
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