-- I hear that Jason is planning to buy a car.-I know. By next month he _enough fo

问题补充：

---- I hear that Jason is planning to buy a car.

---- I know. By next month, he _enough for a used one.

A. will have saved

B. will be saving

C. has saved

D. saves

答案：

(答案→)A. will have saved

B. will be saving

C. has saved

D. saves

解析：本题考查时态的用法，根据时间状语by next time,可以判断出要使用将来完成时态，句意：--我听说Jason计划买个汽车。--我知道，到下个月为止，他将可以攒下可以买辆旧车的。故答案为A。