He was admitted to a famous university,________ was obvious that his situation had gone beyond his parents’ expectations.A.whatB.itC.asD.and it为什么不选B?B和D的区别在哪里?

问题描述:

He was admitted to a famous university,________ was obvious that his situation had gone beyond his parents’ expectations.
A.what
B.it
C.as
D.and it
为什么不选B?B和D的区别在哪里?