问题补充:
— Why don’t you attend the meeting now?
— I am sorry I can’t. I am preparing for the meeting tomorrow.
A. to be held; being held
B. being held; to be held
C. held; to be held
D. being held; held
答案:
A. to be held; being held
(答案→)B. being held; to be held
C. held; to be held
D. being held; held
解析:可联系答.案.网客服索取。