`*` 50đ Question 13: That boy never goes to school late, ……….? .. A. does he B. doesn’t he C. is he D. isn’t he Question 14: “It’s 7 o’clock. Get up ………. you’ll be late for school.” the mother said to her daughter. . A. unless B. because C. if D. or Question 15: Production methods in the village are normally ………. from ancestors to the younger generations. . A. taken off B. put on C. passed down D. kept up Question 16: The more waste paper we recycle, ………. . . A. more trees we preserve B. the more trees we preserve C. fewer trees we preserve D. the fewer trees we preserve