–Where is the library? It’s a classroom.A. in the front ofB. in front ofC. inD. between

问题补充：

–Where is the library?

-- It’s a classroom.

A. in the front of

B. in front of

C. in

D. between

答案：

A. in the front of

(答案→)B. in front of

C. in

D. between

解析：根据问句的内容，和in front of 表示在···外部的前面，in the front of，表示在···内部的前面，故选B，因为图书馆不可能在教室里。