> 英语 >
tom's mother needed__at once
___made him worried.
a.operating on ,that.
b.operating on,which.
c.operating,that.
d.being opreating,which.
为什么不能用being operated ON呢?
人气:248 ℃ 时间:2019-12-01 13:58:48
解答
need want require 等表示“要求 需要”之意的动词,如果表达的是“某是需要被做”时,后面加doing 或to be done
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