Ladies and gentlemen, please fasten your seat belts. The plane________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
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If you find Tom hard ____, you’d better keep away from him.
| A．to get along with | B．to get along |
| C．to be got along with | D．getting along with |
.
Online learning is being widely____to help adults further their education.
| A．attended | B．adopted | C．adapted | D．adjusted |
.
Walter offered us a lift when he was leaving the office ，but our work__，we refused the offer．
| A．not being finished | B．not having finished |
| C．had not been finished | D．was not finished |
.
____ as the most excellent student in her college, as most classmates had expected, made her parents very happy. 
| A．Mary’ s being chosen | B．Mary being chosen |
| C．Mary chosen | D．Mary was chosen |
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