Mr. Barret doesn’t think that all bad language should be allowed. In his opinion, there are ______ that should be kept up.
| A．degrees | B．levels | C．limits | D．standards |
My uncle’s house in the downtown area is much smaller than ours, but it is twice
______expensive.
| A．as | B．so | C．too | D．very |
We feel _____ our duty to make our country a better place.
| A．it | B．this | C．that | D．one |
He hurried to the booking office only _____ that all the tickets had been sold out.
| A．to find | B．found | C．finding | D．find |
It was so cold that they had the fire _____ all night.
| A．to burn | B．burn | C．burning | D．burned |
If you are _______ about Australian cities, just read the book written by Dr. Johnson.
| A．interested | B．anxious | C．upset | D．curious |