作业帮The driver of the car ______a white one came up very quickly.具体分析A was just starting whenB was just starting asC just started sinceD has just started while
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The driver of the car ______a white one came up very quickly.具体分析A was just starting whenB was just starting asC just started sinceD has just started while
The driver of the car ______a white one came up very quickly.
具体分析
A was just starting when
B was just starting as
C just started since
D has just started while
The driver of the car ______a white one came up very quickly.具体分析A was just starting whenB was just starting asC just started sinceD has just started while
参考答案：A
分析：
C项中,since可有“因为,自从”的意思,根据句意,“因为”说不通；若为“自从”,那么主句中的动词应该用完成式,也即是说start要用完成式.故排除C项.
D项中的while引导的状语从句中的动词常为持续性或者是进行式,如while sb was doing sth...意思是“当某人正在做某事的时候”；也可以主、从句都用进行式,表示“某某正在做某事,而某某（另一个人）正在做事”,这时的while译为“而”,就不是“当……时”的意思了.故这个选项用得不是很恰当.
B项很有干扰性,因为just as读起来很顺口.其实这个题目的句型是“A was doing sth when B did sth”,即当你要表达“当……时”这个意思而且主句是过去进行时而从句是一般过去时的时候,状语从句要用when来引导,而不用while或其它表示“当……时”的连词.故本题的最佳选项是A.
楼主你可以拿本语法书查一下when和while的区别,相信你会豁然开朗.
A 即刻将来时