真题练习

535.I like these English songs and they ______ many times on the ridio.

A.taught
B.have taught
C.are taught
D.have been taught

536.The moment I got home,I found I _______ my jacket on the playground.

A.had left
B.left
C.have left
D.was leaving

答案解析
535.答案是D;此处用现在完成时态表示结果，且应该用被动形式。
536.答案是A;leave发生在found之前，故用过去完成时态。