什么时候用where而不用that?例如 Last summer he went to the city______he had visited twice.这句话横线上为什么只能填that,而不用where？

什么时候用where而不用that?例如 Last summer he went to the city______he had visited twice.这句话横线上为什么只能填that,而不用where？ which why that where who whom whose 在定语从句中怎么分别例如：若句子前有“,”后面用 which 而不用 that,用 whom 不用who以此为例 英语定语从句中,什么时候用that,什么时候不用that? In the world where ET comes from...定语从句中的关系词为什么用where而不用that(which)? 定语从句中,什么时候用that,什么时候用where? 什么时候用what,where,who,什么时候用which,that? 定语从句中,什么时候用that ,什么时候用where 在表示地点时什么时候用where,什么时候用that? It was in the room that we used to have meetings.为什么此句句子用that而不用where 从句,连接词it is in room 408 that the meeting will be held.为什么用that,而不用where? we live in a age____many things are done on computer.A.which B.that C.whose D.when还有请问which 和that,什么时候用which 而不用that,什么时候用that而不用 which? 在英语从句中,如何分辨where和that的用法?如 I like place where the weather is warm.为什么这句话中用where而不用that 什么情况下用where？什么情况下用that 定语从句中什么时候用that 不用which,什么时候相反 —where is the alarm clock?—Is_______ on the desk?为什么用 it 而不用 that it is in beijing __ the 2008 olympic games will be held为什么要用that?而不用which?where? Is the factory --------we visited last yearA.thatb.whichc.the oned.where为什么要用the one,而不用that It was in New Zealand ( )Elizabeth first met Mr.Smith.这里为什么不用where而用that, You are saying that everyone should be equal and this is where I disagree.这里为什么用where而不用what?