Children _ sit in the front seat of the car. It’s too dangerous.
| A．need | B．needn’t | C．must | D．mustn’t |
—Did you believe his story?
—No, not at all. From ______very beginning, I knew it was ______ hoax.
| A．a; a | B．a; an | C．the; a | D．a; the |
—Shall we see a film to relax ourselves after the exam? —_________.
| A．That’s all right | B．Good luck |
| C．That’s a good idea | D．Have a great time |
— The light is still on in his room. Do you know _________?
— In order to practise for the English singing party.
| A．if he works hard | B．who he is studying with |
| C．why he is so busy | D．when he will stop working |
— You seem familiar with Mr. John?
—Of course, we _________ together for three years in the 1990s.
| A．have worked | B．were working | C．are working | D．worked |
—_________ valuable advice you gave me! — I hope it can help.
| A．How | B．What | C．What an | D．What a |