“ _____ he be watching TV now?” “Yes,he _____ be watching TV now.” “ No,he _____ be watchingA.Must; can; mustn’t B.Can; must; can’tC.Must; must; can’t D.Can; can; mustn’t是不是错了,应该是D吧

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“_____hebewatchingTVnow?”“Yes,he_____bewatchingTVnow.”“No,he_____bewatchingA.Must;can;mustn’tB.Can;m

“ _____ he be watching TV now?” “Yes,he _____ be watching TV now.” “ No,he _____ be watchingA.Must; can; mustn’t B.Can; must; can’tC.Must; must; can’t D.Can; can; mustn’t是不是错了,应该是D吧
“ _____ he be watching TV now?” “Yes,he _____ be watching TV now.” “ No,he _____ be watching
A.Must; can; mustn’t B.Can; must; can’t
C.Must; must; can’t D.Can; can; mustn’t
是不是错了,应该是D吧

“ _____ he be watching TV now?” “Yes,he _____ be watching TV now.” “ No,he _____ be watchingA.Must; can; mustn’t B.Can; must; can’tC.Must; must; can’t D.Can; can; mustn’t是不是错了,应该是D吧
B正确
第一句表猜测语气较轻
用can 可能,或许...
第二句,因为有yes 语句比较强烈,表肯定用must
第三局,must 的否定形式不能用mustn't要用can't
表一定不是.

不是 答案应该是B没错
非常肯定用must must用做否定的时候一般是用can't的

D。