Experts insist that packets of cigarettes come with a health warning ______ to them.
| A．be attached | B．attach | C．attached | D．attaching |
The opportunity Jack had looked forward________at last when he was named chief engineer in the project.
| A．came | B．to coming | C．to came | D．to come |
Bill suggested________a meeting on what to do for the Shanghai Expo during the vacation.
| A．having held | B．to hold | C．holding | D．hold |
________our manager objects to Tom's joining the club，we shall accept him as a member.
| A．Until | B．Unless | C．If | D．After |
We________on this project for four hours.Let's have a rest.
| A．are working | B．have been working |
| C．worked | D．had worked |
Tom________tell the truth to his boss because he didn't want to make trouble.
| A．daren't to | B．dare to | C．dared not | D．dare |