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 |
They _____the battle but lost many men．
| A．gained | B．won | C．defeated | D．beat |
. It’s quite an informal gathering ; you needn’t ______for it .
| A．dress down | B．dress up | C．dress | D．dress on |
I’m surprised that you should have been fooled by such a(an) ____trick.
| A．ordinary | B． easy | C．smare | D．simple |
It’s known that taking exercise______ your health.
| A．do good to | B．does good to | C．is good to | D．are good for |
He gave a ________smile.
| A．satisfying | B．satisfied | C．satisfaction | D．satisfactory |