I. Choose the underlined words or phrases that are not correct in standard written English.
1. In the 1920s cinema became an important art form and one of the ten  largest industry in the US
2. In some cases , advertisements make people to buy things that they do not really want .
3. George told Mary that he has seen this film three times .
4. It was so nice weather that we would like to go to the beach .
5. Though it is one of  the rarest metals , gold was one of the first to be discover .
6. Although polar bears hunt other animals , they seldom rarely kill people .
7. Hanoi has been the economic , culture , and political center of the Vietnamese .
8. The earth is the only planet with a large number of oxygen  in its atmostphere .
9. Nearly all chemical agents are harmful to living tissue if enough of them is taken .    
10. By measuring the color of star , astronomers can tell how hot is it .