1. The Yellow River is the second longest river in China, isn"t it?2. The Qinghai-Tibet Railway is 1963 kilometers long.3. Slave owners force the slaves do heavy works on their farms.4. Is that polite if you make noise while eating noodles in Japan?5. I have some problems to use computer.6. His arm is injured when he plays basketball7. This is the first time I get to the Yangtze River8. I made a big progress with the help of the teachers.
