定语从句的理解以及能否改用which

This is the checkout where all the food is paid for.

1.请问已经是被动了，为什么句子结尾还留一个for?

2.这个句子可以改用which吗？这样2个介词叠在一起吗？

This is the checkout which all food is paid for at?

This is the checkout where all the food is paid for.

你不可以pay the food, 你只能pay for the food. 此时的pay是不及物动词，后接for才能再接food. 即pay for sth视为短语动词，被动语态则为 the food is paid for.

二个介词连续出现，非常别扭，副词正好可以避免这种情况。所以，本句不宜用which...at替换where。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 1秒前

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