题目内容
---Is______ book on the desk yours?
---Yes, it's______ my book.
A.the, a B.the, the C.the, / D.a, the
C
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This is ______ book I’ve told you about. It’s written by ______ university teacher.
| A.the;an | B.a;an | C.the;a | D.a;the |