【题目】What are you doing out of bed，Tom？You're________to be asleep.
A.supposed
B.known
C.thought
D.considered

【答案】A
【解析】句意为：你不睡觉在干什么，汤姆？你应该睡觉。be supposed todo sth意为：(按规则、惯例等)应该做某事，如：Am I supposedclean all the rooms or just this one？我是应该打扫所有的房间，还是只这间？be known to be被知道是；be thought tobe被认为是；be considered to be被认为是。