Look at this!l ____some magazines and ____this letter.A.was looking through;found B.am looking through;find C.looked through;had found D.had looked through;finding

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Look at this!l ____some magazines and ____this letter.A.was looking through;found B.am looking through;find C.looked through;had found D.had looked through;finding

Look at this!l ____some magazines and ____this letter.A.was looking through;found B.am looking through;find C.looked through;had found D.had looked through;finding
Look at this!l ____some magazines and ____this letter.
A.was looking through;found B.am looking through;find C.looked through;had found D.had looked through;finding

Look at this!l ____some magazines and ____this letter.A.was looking through;found B.am looking through;find C.looked through;had found D.had looked through;finding
A,过去进行时表示过去一直发生的事件,found表示就是表示过去发生的一个动作,用一般过去时,还有什么不懂的,可以百度hi me

A

a