— he have finished his homework?—Yes he . Otherwise he couldn’t be watching TV now.A. M

问题补充：

— he have finished his homework?

—Yes, he . Otherwise, he couldn’t be watching TV now.

A. Must, can

B. Can, can

C. Must must have

D. Can, must have

答案：

A. Must, can

B. Can, can

C. Must must have

(答案→)D. Can, must have

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