Our country _______ a lot in the last fifty years.
| A．will change | B．changed |
| C．changes | D．has changed |
It ______ me about 10 days ______ painting the walls.
| A．took; to finish | B．cost; finishing |
| C．took; finishing | D．spent; to finish |
Tom, it’s cold outside. _______ your coat when you go out.
| A．Take off | B．Put on | C．Put away | D．Take away |
______ fun it is to have ice cream in hot summer!
| A．What a | B．How | C．What | D．How a |
It’s said that ______ of the water around the world ______ polluted.
| A．two third; has | B．two thirds; have |
| C．two third; are | D．two thirds; is |
This is the school _______ we visited last year.
| A．that | B．where | C．who | D．whose |