In three months he speak good English . A. can B. can be able toC. will be able to D. may

问题补充：

In three months he speak good English .

A. can

B. can be able to

C. will be able to

D. may be

答案：

A. can

B. can be able to

(答案→)C. will be able to

D. may be

解析：表示将来的能力应用 will be able to。