_______, you need to give all you have and try your best.
| A．Being a winner. | B．To be a winner | C．Be a winner | D．Having been a winner |
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 |
Please do me a favor —_____ my friend Mr. Smith to Youth Theater at 7:30 tonight.
| A．to invite | B．inviting |
| C．invite | D．invited |
You and I could hardly work together, _____?
| A．could you | B．couldn’t I |
| C．couldn’t we | D．could we |
Do you consider it any good _____ psychology?
| A．to learn | B．to have learned |
| C．learning | D．having learned |
Lack of money led the company to a situation _____ they had to decide whether they should keep on with their production.
| A．when | B．where | C．that | D．which |