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。