Can you finish the work by five o'clock?
你五点钟前能完成工作吗？
He undertook to finish the job by Friday.
他答应星期五或之前完成这一工作。
The earliest we can finish is next Friday.
我们最早能在下星期五完成。
At the rate you work, you'll never finish!
以你工作的速度，你永远也做不完！
She waited patiently for Frances to finish.
她耐心地等弗朗西丝完成。