He’s watching TV? He’s ______ to be cleaning his room.

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问题 He’s watching TV? He’s ______ to be cleaning his room.

选项 A、know
B、supposed
C、regarded
D、considered

答案B

解析 be supposed to do sth.“理所当然要去做某事”:He is supposed to arrive on the five o’clock train. be known to do sth.据知…在做…,没有句型sb.is regarded to do sth.,也不能说sb.is considered to do sth.。句意:他在看电视?他应该在打扫他的房间。
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