Ladies and gentlemen, please fasten your seat belts. The plane _____.
| A．takes off | B．has taken off | C．took off | D．is taking off. |
It remains ______ whether he will pass the exam this time.
| A．to see | B．to be seen | C．to be seeing | D．seen |
Spain will be terribly hot in August and _______ we can’t afford a holiday abroad.
| A．anyhow | B．somehow | C．however | D．therefore |
Has all______ can be done _______?
| A．/; been done | B．/; done | C．that; done | D．that; been done |
It’s hard to imagine what progress they _________ in the past few months.
| A．have found | B．have got | C．have paid | D．have made |
His words ______ me to wonder about his real purpose.
| A．had | B．made | C．left | D．Gave |