"You‘re going to have a test next week.Learn all these words.""All right.I______them by then." (2 分)
A.shall learn
B.shall be learning
C.shall have learned
D.have learned
人气：185 ℃ 时间：2019-12-14 03:28:02
解答
C shall have done 将来完成时,表示将来某时间已经完成某事.（到那时我会已经记下所有的单词了.)其实介词by是个很好的提示：by now 常用于现在完成时：have/has done； eg:I have saved 100 dollars by now.by then ...
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