What are you doing out of bed, Tom? You are___________ to be asleep.
A.supposed
B.known
C.thought
D.considered
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A解析试题分析：考查固定词组。固定词组be supposed to do sth本应该做某事；句意：Tom，你下床干什么？你本应该在休息的。考点：考查固定词组点评：固定词组be supposed to do sth本应该做某事实；suppose的用法中，be supposed to do sth=should do sth应该做某事。是考查最多的短语。