English is a language that many people around the worldnot speak perfectly but at least ca

问题补充：

English is a language that many people around the worldnot speak perfectly but at least can understand．

A. could

B. would

C. will

D. may

答案：

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。