Ladies and gentlemen, please fasten your seat belt. The plane __________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
They looked forward with hope _____ a chance to receive further education.
| A．for getting | B．of getting | C．to get | D．to getting |
I regret _____ hard at school, or I would have succeeded in passing the exam.
| A．not to work | B．having not worked | C．to have not worked | D．not having worked |
. We should prevent such a silly mistake _____ again.
| A．occurring | B．to occur | C．to be occurred | D．from being occurred |
_____ full preparations, we decided to put off the meeting till next week.
| A．We did not make | B．Having not made | C．We had not made | D．Not having made |
I’m examining the article he has just finished _____ the possible mistakes in it.
| A．being corrected | B．to correct | C．corrected | D．having corrected |