Future Perfect Simple
How much money __________ we __________________ by the end of our vacations? (spend)
How much money will we have spent by the end of our vacations?
The drugstore __________________ by 8 o'clock. (close)
The drugstore will have closed by 8 o'clock.
It _________________ raining by the end of the day. (stop)
It will have stopped raining by the end of the day.