Mary ________ as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
| A．has served | B．had served |
| C．is serving | D．served |
Some areas, __________ their severe weather conditions, are hardly populated.
| A．due to | B．with regard to |
| C．but for | D．in spite of |
They hand down the __________ from generation to generation to keep their life alive.
| A．custom | B．method |
| C．habit | D．form |
She went to meet him with an air of expectancy, __________ expecting him to bring something.
| A．as if | B．even if | C．if | D．as |
We chose to take a plane __________.
| A．in all | B．after all |
| C．at all | D．above all |
Passengers stand and stretch as the train __________ the railway station.
| A．pulls | B．pulls out of |
| C．pulls into | D．pulls to |