There are students in our schoo1.
| A．three thousand | B．three thousand of |
| C．three thousands | D．three thousands of |
________ hard, and you will pass the final exam.
| A．Working | B．If you work | C．Work | D．To work |
The past 30 years has ______ the great changes that have taken place in China.
| A．seen | B．noticed | C．watched | D．looked |
– I’m sorry for what I said.
-- Forget it, I can’t remember _________.
| A．generally | B．however | C．anyhow | D．extremely |
______ that the way people spend their holidays has changed a great deal in the past ten years.
| A．Which is reported | B．What is reported |
| C．As is reported | D．It is reported |
______ the day going on, the weather got worse.
| A．As | B．Since | C．With | D．While |