The boy was walking down the street when a UFO landed on Center Street.这里为什么用when不能用while还有2道题：1.You could write him a letter.Sorry,I don t like writing letters.这里能把writing换成to write吗?为什么?2.While she __

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TheboywaswalkingdownthestreetwhenaUFOlandedonCenterStreet.这里为什么用when不能用while还有2道题：1.Youcouldwritehim

The boy was walking down the street when a UFO landed on Center Street.这里为什么用when不能用while还有2道题：1.You could write him a letter.Sorry,I don t like writing letters.这里能把writing换成to write吗?为什么?2.While she __
The boy was walking down the street when a UFO landed on Center Street.这里为什么用when不能用while
还有2道题：1.You could write him a letter.Sorry,I don t like writing letters.这里能把writing换成to write吗?为什么?
2.While she ______(正在通电话),Davy met another dog outside the station.这里填什么? 道理讲清楚者给分

The boy was walking down the street when a UFO landed on Center Street.这里为什么用when不能用while还有2道题：1.You could write him a letter.Sorry,I don t like writing letters.这里能把writing换成to write吗?为什么?2.While she __
The boy was walking down the street when a UFO landed on Center Street.
这里为什么用when不能用while
因为while后面要跟doing sth,正在进行
1You could write him a letter.Sorry,I don t like writing letters.不能换成to write因为这里要表达的是不喜欢写信这个动作,don't like to write a letter,是不想写的意思.
2.was at the phone.或者 was talking on the phone,习惯用法,没什么可以解释的

1.while要接延续性动词，land不是延续性动词，所以不能用while.
2.while she was ringing...

If you want to use while, the sentence must be like this : While the boy was walking down the street, a UFO landed on Center street.
1.Yes, u can if u change the sentence into another type. (Sorry, I don't like to write letters.)
2.While she was telephoning, Davy met another dog outside the station.

1、while强调的一个动作或者很短过程的“时候”，when则是一个相对长的时间过程，一个不明飞行物着陆的过程你也听说过，不是“咚”的一下就着陆的；
2、writing a letter表示写信这么一件事，不是单指这一封信或者那一封信，动名词表示的有这种普遍意义，to write仅仅表示去写这封信本身，意义完全不一样。
3、填was calling，和你的例句是类似的，强调她正在电...

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1、while强调的一个动作或者很短过程的“时候”，when则是一个相对长的时间过程，一个不明飞行物着陆的过程你也听说过，不是“咚”的一下就着陆的；
2、writing a letter表示写信这么一件事，不是单指这一封信或者那一封信，动名词表示的有这种普遍意义，to write仅仅表示去写这封信本身，意义完全不一样。
3、填was calling，和你的例句是类似的，强调她正在电话上叽叽喳喳说话这一事件。

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因为所以。科学道理。你不知道。你妈等你。

英语翻译the boy was walking the street when the UFO landed(对was walking the street 提问）___ ___ the boy ___ when the UFO landed While the boy was walking down the street,the UFO landed,对While the boy was walking down the street提问 One day a small boy was walking along the street in London. His name was Tom while the boy was walking down the street,the UFO landed同义句4种 while the boy was walking down the street,the UFO landed ( ) the boy was walking down the street,the UFO lended. while还是when the boy was walking down the street when the UFO landed同一句 The boy was walking down the street when the UFO landed.(改为同义句) the boy was walking down the street when the UFO landed 神马意思 the boy was walking down the street when the UFO landed改为一般疑问句,并回答 while the boy was walthe boy was walking down the street when the UFO landed改为一般疑问句,并回答while the boy was walking down the down the street ,the 这个句子可以这样调换位置吗?the boy was walking down the street when the UFO landed可以改成when the UFO landed the boy was walking down the street 关于英语主句从句的问题While the boy was walking down the street,the UFO landed.The boy was walking down the street when the UFO landed.这两句中,哪些是主句,哪些是从句,说明理由 英语翻译Bobby,the six-year-old boy,was getting cold walking in the street in the snow. Last week the missing boy was seen_____by the lake填什么?A walk B walking C walked D have walked 1.the boy was walking down the streetwhen the UFO landed.2.while the boy was walking down the street,the UFO landed.3.the girl was shopping when the alien got out.4.while the girl was shopping,the alien got out.5.i am mad at marcia.6.she said she was One day a small boy was walking along the street in London.His name was Tom.It was a cold winter A foreigner and a little boy were walking down the road.The little boy is the son of the foreigner,yet the foreigner was not the father of the little boy.Why?Why does an island looks like Letter when the boy was