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After a long wait,the letter we have been looking forward( )

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After a long wait,the letter we have been looking forward( ) A.to came B.to coming C.to come
After a long wait,the letter we have been looking forward( )
A
这个题好贱.the letter (we have been looking forward to定语从句) came(谓语动词,用了过去式),竟然把定从内部的介词to和主句谓语做成一个空,出题人好贱啊.
再问: look forward to doing 这个固定搭配,怎么用啊?look forward to 与look forward to doing 意思应该不同吧,可以举几个例子吗?
再答: 如果真的是做介词宾语的话,当然动词要改成动名词doing,关键这题不是啊。我给你拆开你看一下。主句 the letter came。从句内容we have been looking forward to the letter。其中重复内容the letter本来应该用关系代词that或which代替,构成定从,也就是the letter (that/which we have been looking forward to定语从句) came 这样的,但是关系代词在从句里做介词to的宾语可以省略,它这就故意省略了。 look forward to中的to是介词,其后跟宾语,名词代词动名词都可以