There are about ________ students in our school.
| A．eight hundred | B．eight hundred of |
| C．eight hundreds | D．eight hundreds of |
－Can you see ?
－No. Let’s go and have a look. Maybe we can help them.
| A．what was happening there | B．what are they doing there |
| C．what are they talking there | D．what is happening there |
—The accident was really terrible.
—Yes, it was. The young man on the bicycle was too .
| A．careless | B．careful | C．carelessly | D．carefully |
—To make our city more beautiful, rubbish into the river.
—I agree.
| A．needn’t be thrown | B．mustn’t be thrown | C．can’t throw | D．may not throw |
—How long have you known the doctor ?
—he helped me three years ago.
| A．When | B．Before | C．Because | D．Since |
—Never touch my computer while I’m away．
—.
| A．I shouldn’t | B．I mustn’t | C．I won’t | D．I don’t |