I don’t know why he has been absent class for so long.A. inB. forC. withD. from

问题补充：

I don’t know why he has been absent class for so long.

A. in

B. for

C. with

D. from

答案：

A. in

B. for

C. with

(答案→)D. from

解析：考查短语：be absent from 缺席什么，句意：我不知道他为什么这么长时间了没来上课。所以选D。