问题描述：
There__any milk in fridge,.But there___some cakes in it A is are B isn't are C isn't aren't
2 ___books are these?They are Mr.Smith's.And he's our new English teacher
A who B Whose C which
2 ___books are these?They are Mr.Smith's.And he's our new English teacher
A who B Whose C which
问题解答：
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