首页 > Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over.A whenB
Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over.A whenB
题目简介
Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over.A whenB
题目详情
Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over. A when B while C as D since
题型：单选题难度：中档来源：不详
答案
A
本题着重考察when与while和as的区别。when可以和延续性动词连用，也可以和短暂性动词连用；而while和as只能和延续性动词连用。 如：Why do you want a new job when you have got such a good one already？（get为短暂性动词,不可用while或as）你已经找到如此好的工作，为何还想再找新的？ 本题从句中knock为短暂性动词，故选A正确。
题目简介
Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over.A whenB
题目详情
A when B while C as D since
答案