—I saw Tom drinking alone just now. —But as far as I know he little.A. drinksB. is drink

问题补充：

—I saw Tom drinking alone just now.

—But as far as I know, he little.

A. drinks

B. is drinking

Chas drunk

D. had drunk

答案：

(答案→)A. drinks

B. is drinking

C. has drunk

D. had drunk

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