单选题 Anew collection of programs______in the conference room.

A、 (A) are presenting
B、 (B) are presented
C、 (C) present
D、 (D) is being presented

【正确答案】 D

【答案解析】An action in progress is indicated by the present continuous; here it is in the passive form. Choice (A) is present continuous (active). Choice (B) is present tense (passive). Choice (C) is the simple form of the verb.