确认一道英语选择！The room is so dirty.It needs___.填cleaning还是to clean可答案是to clean，错了吗

用ing,或者to be cleaned

cleaning吧~

“need”作为实义动词时，通常用法是：
人＋need ＋to do
物＋need ＋doing
物＋need ＋to be done

My car needs repairing．我的汽车需要修理。

虚拟语气吧

-ING