1.His action speaks for (itself) 為什么不可以填himself?
主語是His action不是He
2.He has taken (another) of my books 為什么不可以是other?
other+books=others,anthoer一般只3者以上,other一般修飾名詞
3.I don't think (either) of them is at home.為什么不可以是neither?
從句謂語是單數(shù)用either,如果用neither那么就要用are 而不是is
4.Everyone must do (his) best to help others.為什么不可以是one's?
one's是泛指,do one's best中的one's特指
如果是我就用my,你 your,他們就是their
5.Do you need (any) coffee?為什么不可以是some?
any用于疑問和否定,some用于肯定,表示一些
但是在疑問句中表請求用some.
6.These cups are ours.Those are (others') 為什么不可以是others?
others表示其他人,其他人的是others'
7.There were (few) people and cars in the street,as it was late at night.為什么不可以是some呢?as有既然,但也有盡管的意思啊.
這里不能用some,但as用作盡管時,as=though,要翻譯成盡管^^^但是
顯然,在這里翻譯不通
8.（Each）classroom can seat about fifty pupils.為什么不可以是one?
one一般跟another連用,some和others連用,
這里說的是每一間教室
9.(Every) park is crowded on sundays.為什么不可以是each?
each要和of 連用