问题描述：
几道英语选择,关于完成时.
By the end of this century,we ____ours into a strong modern country.
A.will build B.had built C.have built D.will have built
2.I ____to help you but couldn't get here in time.
A.want B.had wanted C.have wanted D.was wanting
3.By the time the speaker entered the hall,all the listeners ______.
A.had seated B.were seated C.seated D.were seating
感激不尽.
By the end of this century,we ____ours into a strong modern country.
A.will build B.had built C.have built D.will have built
2.I ____to help you but couldn't get here in time.
A.want B.had wanted C.have wanted D.was wanting
3.By the time the speaker entered the hall,all the listeners ______.
A.had seated B.were seated C.seated D.were seating
感激不尽.
问题解答：
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