Don’t talk such things you dont understand.A. thatB. whichC. whatD. as

问题补充：

Don’t talk such things you don understand.

A. that

B. which

C. what

D. as

答案：

A. that

B. which

C. what

(答案→)D. as

解析：这是关系代词as引起的定语从句。