By the time you arrive this evening, ______for two hours.
A、
I will study
B、
I will have been studied
C、
I had studied
D、
I will have been studying
【正确答案】
D
【答案解析】
解析:本题考查将来完成进行时的用法。By the time you arrive this evening是一个将来的时间,by表示在那之前,所以要用将来完成时,而且后面说学习两小时,说明这个动作到那个时候一直在持续,所以需要用到进行时,因此答案为D。
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