1)Quit wasting my time!
2)They quit the city for the seashore every summer.
3)He quit his claim to the throne.
4)She managed the boat efficiently.
5)I only just managed to finish on time.
6)Can you manage dinner on Saturday?
7)How did you manage to get such a great job?
8)The experiment proved to be successful.
9)The army has proved ineffective in protecting the civilian population.
10)I will prove you wrong