— I dreamed of some animals running on the moon.
— It ____ be. There is no air or water on the moon, you know.
| A．can’t | B．may not | C．shouldn’t | D．mustn’t |
What the public is about is whether medical workers and scientists will be able to find a cure for the new disease in a short time.
| A．concerning | B．concern | C．concerned | D．to concern |
It was _____ terrible earthquake and _____ number of people who were killed reached more than 20,000.
| A．a; the | B．the; a | C．the; the | D．a; a |
The computer system __________ suddenly while he was searching for information on the Internet.
| A．broke down | B．broke out | C．broke up | D．broke in |
straight on and you’ll see a church. You won’t miss it.
| A．When going | B．Going | C．If you go | D．Go |
My chest when I take a deep breath, doctor.
| A．hurts | B．wounds | C．harms | D．injures |