As is expected, it will still be some years before all the metro lines in our city _____ into practice.
A. will be put B. are put C. will have been put D. have been put
请问为什么选B 不能选D吗? 时间状语从句中有时候也可以用现在完成时,和一般现在时有什么区别吗?
As is expected, it will still be some years before all the metro lines in our city _____ into practice.
A. will be put B. are put C. will have been put D. have been put
答案可以选B ,也可以选D。 时间状语从句中有时候也可以用现在完成时表示将来,强调动作的完成。例如:I'll phone you when I've finished. 我办完以后会给你打电话的。(摘自《牛津英语用法指南》第三版580.3)
As is expected, it will still be some years before all the metro lines in our city _____ into practice.
A. will be put B. are put C. will have been put D. have been put
请问为什么选B 不能选D吗? 时间状语从句中有时候也可以用现在完成时,和一般现在时有什么区别吗?
答案选B,用一般现在时态,主句用一般将来时态,从句通常用一般现在时态!
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