英语题 需解释The construction of the laboratory _ by the end of next monthA must be completed B.musthave been completed C.will be completed D.will have been completing其他的怎么排除的答案是aD怎么错了???
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英语题 需解释The construction of the laboratory _ by the end of next monthA must be completed B.musthave been completed C.will be completed D.will have been completing其他的怎么排除的答案是aD怎么错了???
英语题 需解释
The construction of the laboratory _ by the end of next month
A must be completed B.musthave been completed
C.will be completed D.will have been completing
其他的怎么排除的
答案是a
D怎么错了???
英语题 需解释The construction of the laboratory _ by the end of next monthA must be completed B.musthave been completed C.will be completed D.will have been completing其他的怎么排除的答案是aD怎么错了???
by是完成时标志,把AC排除.
另D中have been后面明显应该+完成时,排除.
must表示推测
选B
首先BY+时间段是完成时的标志.
其次根据应用被动语态排除D
C
B by the end of next month截止到西个月 用将来完成时
A正确
D语法错误
C用will后面接by不通顺;若用will应该这样说:
The construction of the lab will be completed at the end of the month. 将来时陈述句
B与A相似,但是现在完成时不合适
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