(用所给词的适当形式填空)1.I____ (not see) him since he ____ (leave) school.2.It ____ (be) five years since we last ____ (see) each other.

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(用所给词的适当形式填空)1.I____(notsee)himsincehe____(leave)school.2.It____(be)fiveyearssincewelast____(see)eac

(用所给词的适当形式填空)1.I____ (not see) him since he ____ (leave) school.2.It ____ (be) five years since we last ____ (see) each other.
(用所给词的适当形式填空)1.I____ (not see) him since he ____ (leave) school.2.It ____ (
be) five years since we last ____ (see) each other.

(用所给词的适当形式填空)1.I____ (not see) him since he ____ (leave) school.2.It ____ (be) five years since we last ____ (see) each other.
1.haven't seen, left
2.is/ has been , saw

1.i haven't seen him since he left school
2.it has been five years ...last saw each other

I have not seen him since he left school.

  1. haven't seen; left

  2. is/has been;saw

1 haven't seen/ left 2 is或者has been / saw. 英语时态中现在完成时的考察。其中since是现在完成时的一个关键性标志, since之后引导的从句使用过去时态,主句使用现在完成时态。句2 为一个重要的句型,即 it is/ it has been + 时间段+since + 过去时态的句子,翻译为自从我们上次见面后,已经有5年没有再见了。...

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1 haven't seen/ left 2 is或者has been / saw. 英语时态中现在完成时的考察。其中since是现在完成时的一个关键性标志, since之后引导的从句使用过去时态,主句使用现在完成时态。句2 为一个重要的句型,即 it is/ it has been + 时间段+since + 过去时态的句子,翻译为自从我们上次见面后,已经有5年没有再见了。

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