A. chunk B. activity C. secret D. note A. population B. enough C. sex D. now and then A. assistant B. on behalf of C. wonderful D. hush A. thank you B. excellent C. below D. specialist A. hungry B. them C. famine D. butter A. afraid B. green pepper C. building D. arouse A. Santa B. contented C. put up with D. someone A. secondary school B. argument C. laptop D. bicycle A. peer B. geologist C. hill D. face A. timetable B. trader C. fashion D. pristine