UC知道英语17. “Come back at ten o’clock,”Mrs. Bugers said, “The job______ by then.”
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17. “Come back at ten o’clock,”Mrs. Bugers said, “The job______ by then.”
A.will have been done B.will be doing C.has been done D.is being done
为什么？
A.will have been done B.will be doing C.has been done D.is being done
为什么？
选A
by then 是将来完成时的标志.
A 将来完成时（被动语态）
a
by then是完成时的标志
选A.will have been done，将来完成时
选A
by then表示到那时候，是未来的某一时间点，这个明显要用将来完成时态。The job工作要用被动语态。
A
then 是将来完成时的标志.