My room is a mess. It needs ___.
A、to be tidying up
B、tidying up
C、to tidy up
D、tidied up
【正确答案】：B
【题目解析】：句型“主语(物)+need (want，request)+ doing (to be done)”中，动词后面用动名词的主动形式来表示被动含义或不定式的被动形式来表示。例如：The house needs cleaning (to be cleaned)．(这房子需要打扫了。)The radio needs repairing(to be repaired)．(这台收音机需要修理了。)本句的意思是：“我的房间一团糟。它需要清洁了。”
