His room needs ____,so he will have someone ____ it.A.to whitewash; whitewashing B.whitewashing; whitewashC.whitewash; whitewash D.to be whitewashed; whitewashedD为什么不对?
问题描述：
His room needs ____,so he will have someone ____ it.
A.to whitewash; whitewashing B.whitewashing; whitewash
C.whitewash; whitewash D.to be whitewashed; whitewashed
D为什么不对?
答
选 B
D 选项中第一空还讲地的通 ：need doing=need to be done ;第二空 have sb do 让某人做某事；have sth done 让某事被做。
答
物+need doing sth / need to be done 区别：人+ need to do sth
have sb do sth 叫某人做某事， 区别 have sth done
弄明白以上两种固定用法，就知道D不对，正确答案是B
答
need doing ,什么,需要被做,这个表示被动噢!他的房间需要被清洗,所以第一空用ing !
have sb do .让某人做.这是固定的!
所以选B噢.