问题补充：
In our school only teachers are allowed to use this room. And only in this room find some good dictionaries.
A. we can
B. can we
C. are able we to
D. we are able to
答案：
A. we can
(答案→)B. can we
C. are able we to
D. we are able to
解析：可联系答.案.网客服索取。
