Burning all the lights in the classroom will be a great______ on electric power.
| A．waste | B．lack | C．drain | D．damage |
After studying in a medical college for five years, John _______ her job as a doctor in the countryside.
| A．set out | B．took up | C．set up | D．set off |
My father warned me _______ going to the West Coast because it was crowded with tourists.
| A．on | B．for | C．of | D．against |
The new movie __________ to be one of the biggest money-makers of all time.
| A．promises | B．agrees | C．pretends | D．declines |
I agree to his suggestion __________ condition that he drops all charges.
| A．by | B．in | C．on | D．to |
All her time __________experiments, she has no time for films.
| A．devoted to do | B．is devoted to doing |
| C．devoted to doing | D．is devoted to do |