The employee has tried every way____he has found but still can't _英语解答

The employee has tried every way____he has found but still can't solve the problem
A.in which B.how C.what D.不填

人气：266 ℃　时间：2020-05-05 00:36:15

解答

every way在定语从句he has found中做found的宾语,所以这是一个关系代词that 或which引导的定语从句,这是that 和which可以省略.
答案既没有that也没有which,所以只能选择不填