English is a language that many people around the world not speak perfectly but at least can understand．
A. could
B. would
C. will
D. may
网友回答
A. could
B. would
C. will
(答案→)D. may
解析：考查情态动词。Could是can的过去式，“也许”；would是will的过去式，“会，将要”；may也许；将要：英语是一种去世界的人也许不能讲得很好但是至少能理解的语言。根据句意说明D正确。