-Haven’t we met each other at ________ party?

-Yes, but I can’t remember whether it is _________ Christmas when we were in college.

1. A.
   a; the
2. B.
   the; a
3. C.
   a; a
4. D.
   a; 不填

---Haven’t we met each other at ____ party?

---Yes, but I can’t remember whether it is ____Christmas when we were in college.

A. a; a          B. the; the         C. a; the          D. the; a

---Haven’t you met each other at ____ party?   

     ---Yes, but I can’t remember whether it is____ Christmas when we were in college.

A．a ; the    B. the; a    C. a; a    D. a; /

 ---Haven’t you met each other at ____ party?   

    ---Yes, but I can’t remember whether it is____ Christmas when we were in college.

   A．a ; the       B. the; a          C. a; a         D. a; /

--Haven't we met each other at ________ party?

--Yes．but I can't remember whether it is ________ Christmas when we were in college．

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