问题
选择题
Where are your pens?[ ]
A. It's on the desk.
B. Yes, it is.
C. They are on the desk.
D. Yes, they are.
答案
答案：C
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Where are your pens?[ ]
A. It's on the desk.
B. Yes, it is.
C. They are on the desk.
D. Yes, they are.
答案：C