--- Do you remember when I first met you?
---- Of course. I ___________ at Oxford University.
| A．studied | B．had studied |
| C．have studied | D．was studying |
If you _______ yourself to doing everything in the order given, you would miss an opportunity to be a unique individual.
| A．commit | B．committed |
| C．have committed | D．had committed |
Nowadays a strange, new dilemma faces Chinese pedestrians: should you help an elderly person who ________ into the street?
| A．is falling | B．has fallen |
| C．had fallen | D．was falling |
As the job-hunting season is on the way，many graduates______from anxiety．
| A．will be suffered | B．are suffering |
| C．were suffering | D．are being suffered |
Nearly a century later，extensive observations_______that elephants indeed remember injuries and hold hates against their abusers．
| A．confirmed | B．have confirmed |
| C．will confirm | D．had confirmed |
Fred had to have his car repaired in a garage because it _____ seriously．
| A．damaged | B．had been damaged |
| C．was being damaged | D．had damaged |
The old scientist used to say that knowledge ______ from practice．
| A．was coming | B．comes |
| C．had come | D．would come |
In the last few years, China ____ great achievements in environmental protection．
| A．has made | B．had made |
| C．was making | D．is making |
Don’t handle the vase as if it ____ made of steel．
| A．were | B．is |
| C．has been | D．had been |
— Why do you do volunteer work in the North—West？
— I_____ to improve the lives of the children there through my efforts．
| A．was trying | B．have tried |
| C．am trying | D．tried |
No sooner had he arrived than he ______ to complain about the terrible weather.
| A．began | B．would begin | C．had begun | D．begins |
I was ______ them about my travels ______ she broke in with a story of her own.
| A．to tell; while | B．about to tell; when |
| C．was going to; while | D．telling; while |
They have a good knowledge of English but little _______ they know about German.
| A．have | B．did | C．had | D．do |
The famous musician as well as his students referred to ______to perform at the opening ceremony of the 2012 Taipei Flower Expo.
| A．was invited | B．were invited |
| C．have been invited | D．has been invited |
I ______ to reach the manager for the last two hours but the line is always busy．
| A．tried | B．have tried |
| C．had tried | D．have been trying |
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