It’s known to us all that the deeper you dive, ________ you can breathe.
| A．the difficult | B．more difficult |
| C．most difficult | D．the more difficult |
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 |
_______ , his face as white as a sheet of paper.
| A．A boy rushing in | B．In a boy rushed |
| C．Rushed a boy in | D．In rushed a boy |