The light of his room is still on, so he ( ) out. A、mustn't have goneB、mustn't goC、can't have goneD、can't go
The light of his room is still on, so he ( ) out.
A、mustn't have gone
B、mustn't go
C、can't have gone
D、can't go
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Jia does not take any notice of reading－room ________. He often talks loudly in the reading－room. A.overworkB.strainC.breakD.regulations
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