By the time the science professor retires, she __________ (teach) over one thousand students.
will have taught
Humans __________ (not / land) on Mars by 2023
won’t have landed
You’re reading that document so slowly! _________you __________(finish) it by lunchtime?
will you have finished
I need to replace my smartphone; by this time next week, I __________(buy) a new one.
will have bought
The IT student is very ambitious. By this time next year, she __________ (already/develop) three smartphone applications.
will already have developed
If you’re back by 5pm, come and meet us. The film __________(not / start) by then.
won’t have started
I work for a company which sells cars. By the time I am 30, I__________ (drive) over five hundred cars.
will have driven
It’s getting late. __________ we __________ (reach) our destination by the time it gets dark?
Will we have reached
