We should always look both ways ( )you cross the road A unti
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We should always look both ways ( )you cross the road A until B while C before D after
为什么选C呢 B为什么不可以啊 B可以翻译的通啊
为什么选C呢 B为什么不可以啊 B可以翻译的通啊
B while所接的从句中,动词要用ing形式.
而且这里用while 也不对,while表示“当……的时候”,而这句话的意思是在你过马路之前要先看两边.
再问: 都要用ing吗 在线等回答 给你满意答案~
再答: 呃,貌似也不是都要用ing的, eg. I lived in a hostel while I was a student. 我求学期间住在青年招待所里。
再问: 那这个时候为什么就要用ing呢....
再答: while表示“当……的时候”时,如果这个动作时短暂性的,如cross,get up等,则动词要用ing形式。这里的话,用while you are crossing the road 也是可以的,但意思没有before好,因为是在过马路之前要先看两边,强调的是过马路之前。
而且这里用while 也不对,while表示“当……的时候”,而这句话的意思是在你过马路之前要先看两边.
再问: 都要用ing吗 在线等回答 给你满意答案~
再答: 呃,貌似也不是都要用ing的, eg. I lived in a hostel while I was a student. 我求学期间住在青年招待所里。
再问: 那这个时候为什么就要用ing呢....
再答: while表示“当……的时候”时,如果这个动作时短暂性的,如cross,get up等,则动词要用ing形式。这里的话,用while you are crossing the road 也是可以的,但意思没有before好,因为是在过马路之前要先看两边,强调的是过马路之前。
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