11.People might avoid many accidents ________ these methods been adopted before.

问题描述:

11.People might avoid many accidents ________ these methods been adopted before.
A.that B.were C.have D.had
12.________arose the problem that the boy will never overcome the great difficulties.
A.It B.This C.Here D.Those

D C
第一题是虚拟语气,If these methods had been adopted before.
用的是倒装.
第二题仍然是倒装,副词here放句首就跟here comes the bus一个道理