this is the third week ___ the dustmen haven't come for the rubbish?A.that B.when C.which D.on whichA 为什么不用B 这是什么固定句型吗

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this is the third week ___ the dustmen haven't come for the rubbish?A.that B.when C.which D.on whichA 为什么不用B 这是什么固定句型吗

this is the third week ___ the dustmen haven't come for the rubbish?A.that B.when C.which D.on whichA 为什么不用B 这是什么固定句型吗
this is the third week ___ the dustmen haven't come for the rubbish?
A.that B.when C.which D.on which
A 为什么不用B 这是什么固定句型吗

this is the third week ___ the dustmen haven't come for the rubbish?A.that B.when C.which D.on whichA 为什么不用B 这是什么固定句型吗
一般说来,在It[This] is the first time+ that 结构中,that 从句通常用现在完成时:
It's the first time(that) the boy has spoken to a foreigner.
这个男孩还是第一次同外国人说话.
It's the first time that she's seen an elephant.
这是她第一次见到大象.
有时以上结构中的first 也可换成second,third,fourth 等;其中的time 也可换成其它名词:
It's the first month that he has lived here.这是他第一个月住在这里.
This is the second cigarette that he has smoked today.这是他今天抽的第二支烟.