一道定语从句的题,高手请进4.DoyouknowtheyeartheChineseCommunistPartywasfounded?A.whichB.thatC.whenD.onwhich11.Theyarrivedatafarmhouse,infrontofsatasmallboy.A.whomB.whoC.whichD.that请帮忙

Question

一道定语从句的题,高手请进
4.Do you know the year ______the Chinese Communist Party was founded?
A. which B. that C. when D. on which
11.They arrived at a farmhouse, in front of ______sat a small boy.
A. whom B. who C. which D. that
请帮忙解释一下,越详细越好,Thank you!
为什么第4题不选d，be founded on which(which代the year),也没什么不对啊？why？
11题的意思？帮忙分析一下，先行词是什么？定语从句的主谓宾个成分？

Answer 1

4.C 你先把句子还原the Chinese Communist Party was founded in which year(on which的on不行 不然就可以选D了 )
而when=in which (如果是日期也可以于on which替代,等等）
11.C