__________ work has been done to improve people's living standard.
| A．Many |
| B．A great many |
| C．A great deal of |
| D．A large number of |
When he discovered that it was all ______ joke, he laughed so hard that he nearly fell to _____ ground.
| A．a; 不填 | B．the; 不填 |
| C．a; the | D．the; a |
— It was great to see you again.
— ______ .
| A．I’ll catch up with you |
| B．Be sure to keep in touch |
| C．Try to hold on |
| D．You’re getting ahead of yourself |
— Are you sure the delegation will come to our school next week?
— ______. The head of it has just emailed me about the departure time of their flight.
| A．No wonder | B．You bet |
| C．Don’t mention it | D．Definitely not |
The findings support another study which showed that being happy ______ reduce the risk of heart disease.
| A．need | B．shall | C．must | D．can |
If you want to get your ability ______, you have to show it in your work rather than complain all day.
| A．to recognize | B．recognizing |
| C．being recognized | D．recognized |