If we eat them before a meal,who may take away our appetite.

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If we eat them before a meal,who may take away our appetite.有点急……
If we eat them before a meal,who may take away our appetite.这句话那里错了?答案是把who 改成 they,但是为什么呢?是从什么地方推断出来的?要怎么样才能分清楚和这个相似的其他题型呢?

如果不改动的话,后面半句就是一个定语从句,主句的意思就是“如果我们饭前吃它们的话”,这句话读着就不完整,因此要变成一个完整的句子,就需要把who改成they,意思就完整了,既然有“如果”,那就应该有“那么”,而改成they,这后半句才有那么.这里如果把if去掉,who 可以不用改成they,主要看句子完不完整

If we eat them before a meal,who may take away our appetite. But if we eat them before a meal,they may take away our appe and if we eat them before a meal,they may take a____ our app If we eat them after a meal的翻译 they may take a_ our appetite If we eat them af ter a meal.是啥意思 lf we eat them after a meal ,they ___(be)not bad for us If we give way to our feelins and let them take over,we can If we give way to our feelings and let them take over,we can when they get a take-away meal 是什么意思 that they may take away our lives.but they'll never take our If we don't eat them,someone else will eat them.中someone els