I really don’t knowabout it.A. what to doB. how to doC. to do what D. how can I do

问题补充：

I really don’t knowabout it.

A. what to do

B. how to do

C. to do what

D. how can I do

答案：

(答案→)A. what to do

B. how to do

C. to do what

D. how can I do

解析：可联系答.案.网客服索取。