Question

求解析，谢谢 1.He has told us __he knew. A what which B which that C what what D all all 2

求解析，谢谢
1.He has told us __he knew.
A what which B which that C what what D all all
2.The financial crisis of today is different in comparison to __ we faced many years ago.
A which which B which what C which that D that which
求解析，谢谢

Answer 1

1.what或all：which的意思是（哪个，哪些），that引导宾语无意义。what引导宾语从句，all作宾语，he knew定从，修饰all

2.这个句子中，定语从句介词开头，作其宾语的是which，不能用that

追问

第二个可以详细解释一下吗

追答

to __ we faced many years ago
是定语从句，修饰comparison