(b) Five of these sentences are wrong. Correct the wrong sentences
1 The Gold Rush was in 1853.
2 Levi Strauss came from San Francisco.
3 In Strauss' trousers they used tent cloth because it was
strong
4 Many Americans worked on cowboy ranches in the 1930s.
5 Students liked to wear jeans in the 1930s.
6 Jeans were cheaper after 1980.