—Can you finish the work in an hour?
—____________.
| A．No problem | B．That’s all right |
| C．We don’t believe it | D．Good idea |
There are ________ books in the National Library.
| A．twenty millions | B．twenty millions of |
| C．twenty million | D．twenty million of |
It is going to be ________ tomorrow.
| A．snowy | B．to snow | C．snows | D．snow |
The small local school in Parkville ____________five years ago.
| A．paid for | B．closed down |
| C．closed to | D．picked up |
It’s polite ______ “Thank you” when you receive something from someone.
| A．says | B．say | C．saying | D．to say |