— girls are there in you r classroom? —There’re thirty-one. A. How many B. How oldC. WhoD.

发布时间：2020-08-22 04:03:23

—     girls are there in you r classroom?  —There’re thirty-one.
A. How many
B. How old
C. Who
D. Which

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(答案→)A. How many
B. How old
C. Who
D. Which
解析：根据后文的的答语内容，可知答案为A，因为how many 后接可数名词复数形式。
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