May I have your attention, ladies and gentlemen? The plane in fifteen minutes. Please power off your cell phones.
| A．was taking off | B．is taking off |
| C．has taken off | D．took off |
We have got everything ready at once, with our guests _________ to come in ten minutes.
| A．expected | B．expecting | C．are expecting | D．to expect |
However much ___________, it will be worth it.
| A．does the project costs | B．costs the project | C．the project will cost | D．the project costs |
His success in his career was due to his determination __________ what seemed impossible.
| A．of doing | B．with doing | C．doing | D．to do |
You can get the best result ________ you carry out the experiment under the desired conditions.
| A．what if | B．even if | C．only if | D．as if |
---You’ve finished off two pizzas!
---Yes. But the second is ___________ little bit small, so may I have __________ third one?
| A．a; the | B．不填; a | C．不填; the | D．a; a |