Part 1 Multiple Choice(每小题:1 分)Directions: Choose the best answer from the four choices marked A, B, C and D.1.This diploma (毕业文凭) _ that you have completed high school.A. entitlesB. certifiesC. securesD. approves2.If the rain doesnt stop, people will be faced _ serious flooding.A. toB. aboutC. withD. by3.The article _ Chinas educational achievements during the past 20 years and outlined its develo