有读者问： 有这样一句话：
(1)Everyone in the class is reading their book.
句中的 their 用错了吗？
their 在此一点都不错，它较正式的 his 或 his or her 要普通得多。再如：
(2)Everyone has a way of their own.每人都有自己的一套做法。
(3)Everyone in favour of this proposal please raise their hand.
their 较 his or her 普通
