单选题 These reference books are not supposed______out of the reading room.
A. to take B. took C. taking D. to be taken

【正确答案】 D
【答案解析】[解析] 固定搭配
[试题精解] be supposed to do sth．=should do，表示“应该做某事”。此句中book与take是被动关系，所以用不定式的被动语态。