What are you busy with?- The conference in our city next week.A. heldB. to be heldC

问题补充：

--- What are you busy with?

--- The conference in our city next week.

A. held

B. to be held

C. be holding

D. will be held

答案：

A. held

(答案→)B. to be held

C. be holding

D. will be held

解析：考查非谓语动词，conference与hold为动宾关系又因为时间是在下周所以用不定式的被动式作定语。句意：你在忙什么？下周要在我们城市举行的会议。