After ___the rubbish away,the boy ran back to his seat.A throw B throwing C have thrown

After ___the rubbish away,the boy ran back to his seat.A throw B throwing C have thrown
D being thrown
应该选哪个?为什么?
英语人气:939 ℃时间:2019-08-19 14:12:03
优质解答
选择B
这里首先知道,介词after后面加上动词ing形式,所以排除了A和C
另外要明白后面句子的主语the boy和throw(仍)是主动的关系,所以排除被动的D
综上,选择B
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