The plane___________at 11:05.
| A．takes off | B．took off | C．will take off | D．taking off |
The bad weather meant __________ the rocket launch(发射）for 48 hours.
| A．delaying | B．having delayed |
| C．to delay | D．to have delayed |
Although the country has had political independence for over a century，__________ it needs the support of its neighbors.
naturally B. economically C. especially D. Luckily
— Is there any possibility __________ you could pick me up at the airport?
—No problem.
| A．when | B．that |
| C．whether | D．what |
I suggested that we break off for tea in a( n)__________ to reduce nervousness.
| A．attempt | B．thought |
| C．preparation | D．expectation |
It remains __________ whether this teaching method will be better than that one.
| A．to see | B．to be seen |
| C．seeing | D．seen |