请问这句话中为什么可以用that指人呢?可以换为which吗?She is the only one among us that knows French.

请问这句话中为什么可以用that指人呢?可以换为which吗?She is the only one among us that knows French. 请问It's high time that measures were taken to solve the problem of traffic jams.这句话这句话中为什么要用were taken啊? I was so hungry that I wolfed down my meal 1.请问that可以直接去掉吗?为什么?2.请问down有什么用?3.请问这句话怎么翻译 Is this the man that you served?这句话中that可以用who代替吗? This is the best way that has used againest pollution.这句话中that是否可以换成which,为什么? I believe that this house is for sale.这句话中为什么要用that? 这句话里面的that可以改成who吗?为什么? He told me that Mike thinks that it is imposible.这句话中哪一个（that）可以省略?为什么?回答越详细越好. 请问这句话是什么句型 为什么that可以省略 为什么that不能被替换成when 句中的从句有是什么从句That/It is the first time (that) I have read the book. this is the museum ___ the exhibition was held.为什么不能填that 只能填wherehis father died the year (that,when,in which)he was born.这是 括号里的三个都可以为什么这句话里可以用that?而第一句话中不能用that? 下面这句话中为什么用knowing?可以用to know What we think of as fate is just two neuroses knowing that they are a perfect match. 请问right to left reading order这句话中,read为什么要加-ing.right to left to read order可以吗?用readed可以吗？ 为什么He'll do what he can to study hard.这句话中What 不可以改成that 问一下这句话中为什么可以省略thatthe house i grew up in (that) has been taken down. 请问这句话中where可以用that替代吗?The knee is the joints where the thigh bone meets are large bone of the lower leg.求专业、犀利正解并说明什么时候用when、 where、 that、who等~ songs that bring you back to greatmoments in your life. songs后面为什么接that请问这句话 Songs that bring you back to greatmoments in your life.中Songs后面为什么要接that?请高人指点 He was so hard working that in his life time请问这句话为什么加that? 为什么在这句话“He is the man（whom/that）I saw yesterday.”中为什么要填“whom/that”在定语从句中的whom/that我知道是作宾语但是请问谁可以帮助我分析一下句子成分?没什么在这个定语从句中要填w