问题
选择题
—_____?
—They are blue. [ ]
A. What's this
B. What color are they?
C. How are you?
D. How old is he?
答案
答案：B
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—_____?
—They are blue. [ ]
A. What's this
B. What color are they?
C. How are you?
D. How old is he?
答案：B