You’d better _______ too much meat. You are much too fat.
| A．not eat | B．eat other |
| C．not to eat | D．don’t eat |
The world has a big headache and it _______ by money. It began in America last year.
| A．cause | B．causes | C．is caused | D．are caused |
The art club is for members only. You can’t go in _________ you are a member.
| A．unless | B．because | C．if | D．though |
— _________ yogurt do you need?
— Three cups.
| A．How long | B．How far | C．How many | D．How much |
This dictionary is pretty cheap. The price of it is _________ of the three.
| A．very low | B．quite low | C．the lowest | D．much lower |
— Must I answer this question in English?
— No, you_________.
| A．mustn’t | B．needn’t | C．can’t | D．shouldn’t |