The computer was used in teaching. As a result, not only__________, but students became more interested in the lessons. 
| A．saved was teachers’ energy | B．was teachers’ energy saved |
C．teachers’ energy was saved | D．was saved teachers’ energy |
Though having lived abroad for years, many Chinese still _____ the traditional customs.
| A．perform | B．possess |
| C．observe | D．support |
Mistakes don’t just happen; they occur for a reason. Find out the reason, and then making the mistake becomes _______.
| A．favourable | B．previous |
| C．essential | D．worthwhile |
What ___________ pleasant surprise! I’ll tell Richard about it ___________ minute he comes home.
| A．a; the | B．a; a |
| C．a; / | D．/; the |
—Can I sit in your new sofa? It looks so nice.
—______. I will get some coffee for you.
| A．Make yourself comfortable | B．Take it easy |
| C．Help yourself | D．It’s a pleasure |
From ______ you are standing, you can have a bird’s view of the whole city and feel its great changes during the past decades.
| A．what | B．when |
| C．which | D．where |