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When you get you r paper back,pay special attention to ( wha

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/13 17:58:46
When you get you r paper back,pay special attention to ( what) have been marked.为啥不用which
首先,你想填which,是一个定语从句.定语从句就要有先行词.可以说成When you get your paper back,pay special attention to words/problems which have been marked.
如果要填一个词,就必须填what.此时,这个句子是一个名词性从句,即一个宾语从句.pay special attention to 做谓语后面从句做宾语.此时需要用宾语从句引导词what引导.