by the time you arrive this evening,_______ for two hours.a i will study bi willhave been studied
c i had studied d iwill have been studying
人气：214 ℃ 时间：2019-10-18 02:49:16
解答
答案选D
“by the time +将来时间”,用于将来完成时[will have done]或将来完成进行时[will have been doing],排除A,C.又由于B项是表示被动的,错误,故选D
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