Doctors say that exercise is important for health, but it _______ be regular exercise.
| A．can | B．will | C．must | D．may |
We are not twins, but we are very much _____. People often mistake one for another.
| A．like | B．alike |
| C．unlike | D．likely |
Don’t do that. It is impolite to play jokes _____ others.
| A．at | B．with |
| C．for | D．on |
Much to his _____, his father was not angry at the result of the examination.
| A．surprised | B．exciting |
| C．surprise | D．excited |
At the school gate, you should _____ the safeguard with your student card.
| A．present | B．give |
| C．show | D．provide |
Father insisted Tom _____ all his homework before he went to bed.
| A．finishing | B．to finish |
| C．finish | D．finished |