1 . All the doctors in the hospital insisted that he__________(be) badly wounded and that he___________(operate) on at once.

2 . The hospital operates well，where many wounded ________ (operate) on every day.

3 . It's too difficult for him to__________ (操作) this new machine.

4 . He was sent into the hospital for stomach pains last night and his stomach ________ (operate) on already.

5 . We discussed the pros and cons of changing the company's ________ (操作) system. （根据汉语提示单词拼写）

6 . It must also be acknowledged that many of China's __________________ which are ultimately protecting their bottomline.(景点由私人公司运营 operate)

7 . The doctor said that the patient had to be operated ____________ at once，which made us all worried.

8 . They learn the principles of flight and test their_____ (operate) skills in the cockpit (驾驶舱) of a variety of flight simulators. (所给词的适当形式填空)

9 . ________(机器容易操作). Anybody can learn to use it in a few minutes. （根据汉语提示完成句子）

10 . They held hands as Mark was wheeled into the ________ (operate) room. (所给词的适当形式填空)