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

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：此处解题关键是：by next month是将来的时间状语，所以用将来完成时。句意：---我听说Jason计划买一辆车。---我知道。到下个月，他就攒够了足够的钱买一辆二手车。

【考点定位】考查动词时态。