757.What are you doing out of bed, Tom? You're _____ to be asleep.

A.supposed

B.known

C.thought

D.considered

758.You are old enough to _____ your own living.

A.win

B.gain

C.take

D.earn

757.答案是A；

考查动词在具体语境中的应用。句意:Tom，你不睡觉干嘛？你现在应该睡觉。out of bed未上床，起床;be supposed to do应当，应该。

758.答案是D;

考查动词的固定搭配。earn one's living谋生;make/earn/get a living 谋生。