We’ve come to help. Which room do you want ?A. cleaningB. cleanedC. to cleanD. to be clean

问题补充：

We’ve come to help. Which room do you want ?

A. cleaning

B. cleaned

C. to clean

D. to be cleaned

答案：

A. cleaning

B. cleaned

C. to clean

(答案→)D. to be cleaned

解析：考察非谓语动词.句意:我们来帮忙了.你要打扫那个房间?不定式表示具体的将要进行的动作,房间是被打扫的对象,故用被动语态,选D.