Nelson Mandela devoted all his life to the struggle of the African people and of every nation that seeks freedom．
| A．it | B．one | C．those | D．that |
Though his teachers were quite satisfied with his performance, he thought he ____ better if he had tried harder.
| A．could have done | B．should have done |
| C．ought to have done | D．must have done |
Riddle guessing on New Year’s Eve has become my family ________ for many years.
| A．habit | B．act |
| C．tradition | D．way |
Bravely ________ they fought, they had no chance of winning the match.
| A．though | B．if |
| C．as | D．because |
I used to think that roses were ______ red or white, but now I know there are yellow and blue roses.
| A．neither | B．nor |
| C．either | D．both |
---Do you mind if I use your notebook for a while?
---No, ________, please.
| A．if you have to | B．never mind |
| C．as you wish | D．go ahead |