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题目
It was after dark when the two children were both on the safety crossing by a lorry
A knocked down B knocked out C yun out D runacross
both后面有横线 C run out D run across

提问时间:2020-10-13

答案
1.前面有个were,说明此句后面只能接过去分词构成被动语态.(ABCD都对)
2.补充的内容是 两个孩子被汽车.怎么了
3.再看这几个词组的意思:(因为都是过去分词需去掉后缀)
A.knock down 击倒;撞倒
B.knocked out 敲空;击倒;打破
C.run out耗尽;跑出;到期;伸向
Drun across偶然遇到;跑着穿过
很显然BCD放上去都不合语意,所以选A knock down 撞倒
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