After studying in medical college for five years, Jane ______ her job as a doctor in the countryside.

At times the balance in nature is____, resulting in a number of possibly unforeseen effects.

_____ the watch and see if you can find out what’s wrong with it.

The lecture was so complex that I simply couldn’t ______ at all. Could you explain it to me?

—Bad luck. My computer doesn’t work.  —Why not turn to John? No one can match him in our class when it __________repairing computers.