Look at this ! I＿＿＿＿＿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

科目 英语   题型 单选题   难度 容易

知识点： 动词语态