一、 单项填空 ( )1. We work together to achieve our common purpose: ________ world that is safer, cleaner and healthier than ________ one we are living in. A. the ; / B. a ; / C. the ; the D. a ; the ( ) 2. The number of people present at the concert was ________ than we expected. A. much fewer B. much smaller C. much more D. many more
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