—Tommy is planning to buy a car.
—I know. By next month, he________enough for a used one.
A. saves
B. saved
C. will save
D. will have saved
—Tommy is planning to buy a car.
—I know. By next month, he________enough for a used one.
A. saves
B. saved
C. will save
D. will have saved
D
解析:根据时间状语by next month可确定,此处应用将来完成时,表示“到下个月为止,他将攒够买一辆二手车的钱。”