一、选择填空。(15分)
( ) 1. Don´t make same mistake for the second time in day.
A. the; a B.a; a C. the; the D. a; the
( ) 2. If there are _____trees, the air in our city will be _____ cleaner.
A. less; more B. more; more C. more; much D. much; more
( ) 3. ―Must I tell John the news? ―No, you . I´ve told him already.
A. mustn´t B. wouldn´t C. shouldn´t D. needn´t
( ) 4. There were many famous predictions that never_____.
A. come true B. came real C. came true D. be true