I think Jack _____ the answer .Let's just wait for a moment.
A.has known
B.will know
C.is knowing
D.knows
这道题选现在完成时还是一般将来时?
I think Jack _ the answer .Let`s just wait for a moment.
A.has known
B.will know
C.is knowing
D knows
答案解析B:根据句子意思,还没有知道答案,属于将来动作行为,所有应一般将来时态,如果选A表示已经知道了答案。
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