Professor Smith，along with his assistants，___________ on the project day and night to meet the deadline.
| A．work | B．working | C．is working | D．are working |
I think you could complain, ___, of course, you are happy with the way things are.
| A．when | B．if |
| C．unless | D．while |
Only when _______ hard _______ make your dream come true.
| A．do you work; you can | B．you work; you can |
| C．you work; can you | D．do you work; can you |
Thanks to Mr. Smith, the father and the son eventually ________ after ten years' cold relationship between them.
| A．took up | B．made up |
| C．broke up | D．turned up |
GLOBE International is an organization _____to finding effective solutions to the problems with sustainable development.
| A．committed | B．having committed |
| C．commits | D．committing |
Never shall I forget that poem and the inspiration _____ provided for my first novel.
| A．which | B．that |
| C．it | D．what |