Though Mandela﹙曼德拉﹚____ 27 years in prison﹙监狱﹚, he thought it meaningful.
| A．planned | B．spent |
| C．happened | D．waited |
Would you mind the blackboard?
A．clean B．cleans C．Cleaning
We are going to have a basketball game this afternoon. Our team will play________class 6.
A．through B．between C．Against
There is going to a football game next week.
A．be B．is C． Have
—Mr. Hu, can you tell us how to learn swimming well?
—Sure. But remember we can learn nothing well _______ hard work.
A. with B. after C. without
You _______ wash your hands before meals. It is good for your health.
A. mayB. canC. must