You'd better wake him up at once.He( )for eleven hours already.A..has been asleep B.has fallen asleep C.has gone to bad D.has gone to sleep.为什么别的不对?我看那个都对啊

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You'd better wake him up at once.He( )for eleven hours already.
A..has been asleep B.has fallen asleep C.has gone to bad D.has gone to sleep.为什么别的不对?我看那个都对啊

B.fall是不可延续动词,不与时间段连用
C.D.go不可延续,也不能与时间段连用
必须改成be asleep