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问题: 分析一下这个句子(非谓语很难理解哦)

_____in the care of his grandmother, Ted grew to be a boy with very good manners .
A. Leaving B. To be left
C. To leave D. Left

解答:

选择D,可以进行还原。
(As Ted was) left in the care of his grandmother....

非谓语动词和正常句子的区别就在于省略了“连词+主系”

另一个难点在于时态的确定上。如果再加上被动,凑个热闹就更加有趣了。

完成时 having done(主动), having been done(被动)
将来时 to do sth(主动), to be done(被动)

都搞懂了,还难不难?