—Is that man Mr Hu?—That be Mr Hu. Because he has gone to Japan with his wife.A. couldB.

问题补充：

—Is that man Mr Hu?

—That be Mr Hu. Because he has gone to Japan with his wife.

A. could

B. can’t

C. might

D. must

答案：

A. could

(答案→)B. can’t

C. might

D. must

解析：根据下文他和妻子去了日本，可知前面应为否定形式，所以选B，那不可能是胡先生。