when was it that your mother showed you around the west lake语法结构,为什么用that

It was you that I can't remember __ you stared doing the work A.that it was when B.when it was that I can't remember__________ you started doing the work.A.that it was when B.when it was that C.when was it thatD.that was it when 正确答案是B,为什么答案不是C? _______China’s first manned space flight took place?A.When it was that B.Was it when that C.When was it that D.Was it that whenTHE ANSWER IS CWHY DO NOT YOU CHOOSE A Can you tell me ( ) that he came to life?A.when it was B.when was it when do you suppose ____ the burglar entered the room a.that b.that it was c.it was that d.was that You know what?It is because someone wanna see you when that guy was in your When you see only one set of footprints ,it was then that i carried you . Was it 8o'clock -----you heard someone------at the doorA.when knockingB.when knockC.that knockingD.that knock 还原When and where was it that you were born?成非强调句谢谢 It is because someone wanna see you when that guy was in your when did you get to know her?It was in 1998that还是where we worked “When you saw on y one set of footprints、It was then that I carried when was it that your mother showed you around the West Lake?翻译 I don't remember how many years ago____I last showed you around the factory A.it was that B.it was B it was when When did you arrive in Shanghai?--- It was five____ i arrived there/A.when B.that C.whichD.at which When+++and++++where+++was++++it++++that++++he++++was+++++born? Did you know that it was when the guests had already left______they went on with their discussion.为什么填that、