问题
选择题
—What are those?
— are their books．
A．That B．They’re C．They
答案
答案：C
由题目中的What are those?可知是复数概念，that表示单数，故A错。回答中有个are，B中They’re就重复了，故B错，选C。
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—What are those?
— are their books．
A．That B．They’re C．They
答案：C
由题目中的What are those?可知是复数概念，that表示单数，故A错。回答中有个are，B中They’re就重复了，故B错，选C。