The teacher wants usthe classroom.A. to cleanB. cleansC. cleaningD. clean

问题补充：

The teacher wants usthe classroom.

A. to clean

B. cleans

C. cleaning

D. clean

答案：

(答案→)A. to clean

B. cleans

C. cleaning

D. clean

解析：want sb. to do sth. 表示“想让某人干某事”，是一固定用法。本句的意思是“老师想让我们打扫教室。”所以本题选A。