After ________ seemed hours of waiting in line ,finally it w
2个回答
一、分析
1.after 是介词,what 从句是介词宾语；只有what引导的从句才可以作介词宾语.
2.that 引导的从句只能在 on（关于）,about（关于）,but（若非）,except（只是） 等个别几个介词后作宾语.
二、 关于 what
what 是关系代词性连接代词,相当于 that/those + which,意思是“所...的事物/人”,因此这个句子也可以改写为：
After that which seemed hours of waiting in line,finally it was our turn to pass the gateway.
改写后的结构如下：
1.that 既是介词 after 的宾语也是后面定语从句 which seemed hours of waiting in line 的先行词,
2.which 是关系代词,指代先行词 that.
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