in the regulations that you should not tell other people the password of your e-mail account.
| A．It requires | B．It is required | C．What requires | D．What is required |
Be careful when you cross this busy street. ________, you may get run over by a car.
| A．If not | B．If so | C．If any | D．If possible |
Smoking is so harmful to people’s health that it kills __________ people each year than automobile accidents.
| A．seven more times | B．seven times more |
| C．over seven times | D．seven times |
I’ll come to pay a visit to you if _______ this weekend.
| A．you’re convenient | B．it is convenient for you |
| C．you feel convenient | D．it is convenient with you |
The student was_______ a gold cup for his excellent performance in the competition.
| A．awarded | B．admitted | C．applied | D．advanced |
Tom ____ be ill, for I saw him playing basketball an hour ago.
| A．mustn’t | B．needn’t | C．can’t | D．may not |