a 20 minutes' walk和 a 20-minute walk 有什么不同?1.every morning Mr.Smith takes a ________to his office.A.20minutes' walk B.20minute's walk C.20minutes walk D.20-minute walk这里选D 为什么不能选A呢2.My home is about ______from my schoo

a 20 minutes' walk和 a 20-minute walk 有什么不同?1.every morning Mr.Smith takes a ________to his office.A.20minutes' walk B.20minute's walk C.20minutes walk D.20-minute walk这里选D 为什么不能选A呢2.My home is about ______from my schoo
a 20 minutes' walk和 a 20-minute walk 有什么不同?
1.every morning Mr.Smith takes a ________to his office.
A.20minutes' walk B.20minute's walk C.20minutes walk D.20-minute walk
这里选D 为什么不能选A呢
2.My home is about ______from my school.
A.15 minutes B.10-minute ride C.20 minutes' by bike D.15-minute's on foot
这里选B 为什么前面不加a呢?

a 20 minutes' walk和 a 20-minute walk 有什么不同?1.every morning Mr.Smith takes a ________to his office.A.20minutes' walk B.20minute's walk C.20minutes walk D.20-minute walk这里选D 为什么不能选A呢2.My home is about ______from my schoo
1是做宾语,这种中心位置,如主语,表语,宾语,要加A
2这是定语,不用加.
就这么简单.

1.有的书上没有D时候也可以选择A，但是准确的说A是错误的，20minutes'是所有格形式，就比如你不能说a Lily's book.
2.ACD结构不对，B也不够准确，相比之下选择B。希望对你有帮助

1. A通常句子结尾 如: How far is your office? 回答About 20 minutes' walk.
在题里你可以先不看那个20-minute 这个句子其实是Mr. Smith takes a walk to his office. 怎样的walk呢 20-minute walk.
2. 这里和我第一题给你举得那个例子一样的 这里指的是距离 如果说a...

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1. A通常句子结尾 如: How far is your office? 回答About 20 minutes' walk.
在题里你可以先不看那个20-minute 这个句子其实是Mr. Smith takes a walk to his office. 怎样的walk呢 20-minute walk.
2. 这里和我第一题给你举得那个例子一样的 这里指的是距离 如果说a ride 通常是说Give me a ride(载我一程, 让我搭个便车), 那是另一个意思了.

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