---- You’re coughing badly, Martin．Why not give up smoking?
---- Give up smoking? Easier said than done, Amy．Once you _____ the habit of smoking, it is very hard for you to______．
| A．keep up; break it away | B．take up; drop it out |
| C．pick up; get rid of it | D．build up; do away with it |
Don’t take things________ others.
| A．belong to | B．belonged to | C．belonging to | D．that belonging to |
It was reported that many helicopters were sent there _________the missing passengers.
| A．in search of | B．in need of | C．in charge of | D．in time of |
---May I open the window to let in some fresh air?
---__________.
| A．Come on! | B．Take care! | C．Hold on! | D．Go ahead! |
He has called several times this morning, ____ there is something very urgent.
| A．really | B．especially | C．obviously | D．terribly |
You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
| A．so that | B．in order that | C．now that | D．in case |