You’ll have to pay for the holiday in ______ ，Tom．

A. was intersted in flowers and insects in his childhood
B. lost his hearing when he was a child
C. didn’t like his brothers and sisters
D. was born to a naturalist’s family

A. our natural surroundings are in danger of being destroyed by industry
B. the fixed supply of natural resources marks a point beyond which economic growth cannot continue
C. the world population is ever increasing
D. more efforts should be made to improve the quality of our material life