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By the time I left the school, the professor ______ that class for two years.A、h
By the time I left the school, the professor ______ that class for two years.A、h
游客
2024-07-25
45
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问题
By the time I left the school, the professor ______ that class for two years.
选项
A、has taught
B、had taught
C、will have taught
D、will teach
答案
B
解析
本题考查过去完成时的用法。by the time若后接的从句是一般过去时,则主句用过去完成时;若后接的从句表示将来的时间,则主句用将来完成时。根据此原则,“毕业”是过去发生的事情,因此选项B为正确答案。
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