又是想請問文法題目>< - 自學

1.Everyone who comes to the party is given a wooden apple with _____ own

names cut in it as a souvenir. (A)his (B)her (C)their (D)our

這提的答案是(A)...我同意，但...下面這題

2.Everybody in the class must give in _____ exercise book within the given

time. (A)their (B)our (C)his (D)her

這題的答案卻是(A)這我就不懂了><，everyone, everybody不都應該當單數使用嗎?

還是我又哪裡錯了?

3.He has five children, and _____ of them is good at painting.

(A)everyone (B)everybody (C)every one (D)every

這題答案是C，那A、B為何不行呢?

以上三題，煩請有心人能幫幫忙，非常感謝!

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