If you want to get good grades, ____________, you should listen to the teacher _________ in class.
| A．at first; careful | B．first of all; carefully |
| C．for the first time; careful | D．first of; carefully |
They were made ________ from time to time because Tom told many jokes.
| A．to laugh | B．laughing |
| C．laugh | D．laughed |
Be careful, ________ you will make few mistakes.
| A．so | B．and | C．or | D．but |
The new book has just ________. Let’s go and buy it.
| A．come on | B．come down |
| C．come over | D．come out |
—Who do you like best, Kobe, James or Jordan?
— ________ of them. Lin Shuhao is my favourite basketball player.
| A．All | B．None |
| C．Each | D．Either |
The doctor says I ________ take any medicine as I am much better now.
| A．can’t | B．mustn’t |
| C．couldn’t | D．needn’t |