It is reported that people throw _______ plastic bags along this street every day.
| A．hundred | B．hundreds |
| C．hundreds of | D．hundred of |
Jenny is university student,. She likes playing chess after school.
| A．the; the | B．a ; / | C．/ ; the | D．the ; / |
—Do you know _______ for Hainan last week?
—Last Tuesday.
| A．whenMiss Liuwill leave | B．when Miss Liu left |
| C．when did Miss Liu leave | D．when will Miss Liu leave |
— A computer is very popular and helpful .
— I think so. It _______ in many different fields.
| A．used | B．will use |
| C．is used | D．was used |
My uncle is an experienced teacher. He_____English since 2002.
| A．teaches | B．taught |
| C．has taught | D．will teach |
Mr. Green _______ his lessons when I went into his office.
| A．prepares | B．prepared |
| C．is preparing | D．was preparing |