1 . What skills are needed to _________ this kind of machines? (operation)

2 . These robots can also help doctors to ________ patients.

A．operate

B．be operated

C．operate on

D．operate to

3 . Do you know that nowadays no drivers are needed to ______ the underground trains? (operation)

4 . The factory is looking for a man who can _________ the new machine. (operation)

5 . Doctor Chen and his crew will ________ on the sick man next Wednesday. (operation)

6 . The workers are taking courses to learn how to ________ the machine. (operation)

7 . To ________ the machine, please read the instructions carefully first. (operation)

8 . Science is developing fast. Scientists and doctors will surely find a way to ______ cancer some day.

A．treat

B．operate

C．realise

D．perform

9 . Many people were badly hurt in the car accident. Some of them needed _________ (operate) on at once.

10 . —It’s hard for me to control this new machine.
—You need to read its instructions. It will be helpful.

A．operate

B．invent

C．pull