_______of the heavy burden of homework,the children rushed out of the classroom and enjoyed themselves.
A to be free B freeing C to free D freed 答案是D为什么不能选B?
人气：290 ℃ 时间：2020-06-26 13:58:58
解答
freed ==set free from （被动概念）- - - 从- - -中解脱/ 解放出来
语法
1 这是一句带有过去分词做伴随状态表时间的句子.可以改写成时间状语从句：When / As soon as they were freed of -- -- -,the children - - - -- .
2 free sb of sth.:使某人摆脱- - --
3 如果一定要选B,句子必须改写成：(变成主动概念) Having freed themselves of the burden of homewok,the children - - -- -.或者：When they had freed themselves of -- - - -,the children - -- - -.
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