题目内容
--It was careless of you ________ your bike unlocked outside all night.
--My God! So I did.
[ ]
A.to leave
B.left
C.had left
D.to have left
答案:D
提示:
提示:
|
to have left是不定式的完成式,所表示的动作发生在谓语动词之前. |
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