The teacher says the windows need _____ .A mending B mends Cmened D to mend有一种语法叫need to do sth.D为什么错(正确为A)

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The teacher says the windows need _____ .A mending B mends Cmened D to mend有一种语法叫need to do sth.D为什么错(正确为A)
The teacher says the windows need _____ .A mending B mends Cmened D to mend
有一种语法叫need to do sth.D为什么错(正确为A)

The teacher says the windows need _____ .A mending B mends Cmened D to mend有一种语法叫need to do sth.D为什么错(正确为A)
A
解释如下
need 接动名词主动形式,表示被动意义、这时动名词和主语之间有动宾关系, need doing 可转换为 need to be done 结构,意思相同.如:
My hair needs washing badly. (= My hair needs to be washed badly.)
我的头发非常需要洗一洗.
The garden needs watering. (=The garden needs to be watered.)
花园需要浇水.