English is a language that many people around the world not speak perfectly but at least understand.
A. might；could
B. will；must
C. would；might
D. can；may
网友回答
(答案→)A. might；could
B. will；must
C. would；might
D. can；may
解析：情态动词might用于表推测时，和may相同，用于肯定句和否定句，所表示的可能性较小；could用于表推测时，语气与might差不多。