In the last few years,China ___ great achievements in environmental protection.
| A．has made | B．had made | C．was making | D．is making |
There is no doubt _____ China has made rapid progress in space exploration.
| A． whether | B． that | C． which | D． who |
Though they are of ____ age, they are quite opposite in character.
| A．an; a | B．an; / | C．the; a | D．the; / |
. --- Thanks for your help, but can you do me one more favour, please?
--- ____, sir. What’s it then?
| A．Just a minute | B．It’s very nice of you |
| C．That’s all right | D．At your service |
Some young people ____ a good salary in a job at home instead of working hard day and night abroad, but they chose to go abroad.
| A．must make | B．could have made |
| C．should have made | D．would make |
The famous actor keeps fit by ____ for half an hour every morning.
| A．acting out | B．bringing out |
| C．giving out | D．working out |