Our planet is about years old.
| A．35,000 | B．4600 | C．4600 million | D．500 million |
Good manners can make peopleeach other.
| A．get on well with | B．get off |
| C．get over | D．get away |
—Did you use to have long hair or short hair, Sally?
—
| A．Yes, I did | B．No, I didn't |
| C．Long hair | D．Curly hair |
Please tum to Pageand read thestory.
| A．Ten; two | B．Ten; second |
| C．Tenth; second | D．Tenth; two |
is one of the four great inventions of ancient China.
| A．The car | B．The train |
| C．Paper-making | D．The computer |
The weather is becoming.
| A．hotter and hotter | B．more hot and hot |
| C．hoter and hoter | D．more and more hot |