甲:I found a set of keys in the classroom.
乙: ___ yours?
A.that is
B.are they
C.is that
D.they are
这个题书上答案是B,为什么不选C呢?a set of+复数名词做主语时,谓语动词用单数形式。那么回答也是针对a set of,强调一串钥匙,是单数。为什么不用is that?
谢谢!
乙: ___ yours?
A.that is
B.are they
C.is that
D.they are
这个题书上答案是B,为什么不选C呢?a set of+复数名词做主语时,谓语动词用单数形式。那么回答也是针对a set of,强调一串钥匙,是单数。为什么不用is that?
谢谢!