how careless _____!A.you both are

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how careless _____!A.you both are
how careless _____!
A.you both are B.you are both C.both you are D.you are all
both不是放在be动词后吗,

正确：A
both作主语同位语,即与主语的作用一样.
再问： you are both clever. both不是放在be动词后吗？
再答： both的用法和位置作者：终南太瘦生both的位置可以根据它的语法功能分为：
1 both of the pl 是一个名词性质的短语。作主语时在谓语之前，作宾语时在动词之后。如：Both of the writers were born in Chang an.He picked up both of the passegers from the airport.
of the pl 可以变为：of us/ them/you。也可以省略为：both
2 both (the) pl 中both相当于形容词，作定语，放在名词之前。如：both the brothers, both arms.
3 在名词或代词复数后作主语的同位语用，
1)没有助动词时，就放在谓语之前。如：They both work for the foreign company.The actresses both got into the lift.
2)有助动词时，通常就放在第一个助动词之后。如：They have both kept the secret.The managers are both in faour of the policy.
3)有助动词，但助动词后再没有其它词语时，就放在助动词之前。如：How silly you both are! Have they seen the movie? Yes，they both have.
4)作宾语的同位语时，放在宾语之后。如：I took photographs of them both.
4 both ... and ...是一个连词，用来连接并列的成分。如：She is both glad and sorry to see him. Both John and Jack were criticized by the boss. She was ashamed ,both for herself and for her sister.

how careless _____!A.you both are how careless you both are! 感叹句：what/HOW careless a boy you are! How careless a boy you are!这里哪个是主语? how clever you ___ A are both B both are 感叹句：____ careless a boy you are!A.How 　　B.What a 　　C.What 18____ careless a boy you are!A.How B.What a C.What ____ careless a boy you are!答案给的是what啊 ,也有很多人选填how 的, how old are both of you? How careless you are to()the stove()while you're away!Really but many scientists are both care and careless How are you today?_____,thank you.