A. power line B. around C. comprehension D. account for A. show B. paratrooper C. feeling D. help with A. quail B. library card C. in person D. on guard A. within B. biologist C. presenter D. perch A. sacrifice B. China C. examine D. international A. blacken B. seem C. take photos D. cheer A. adapt B. confidently C. eat breakfast D. interview A. studio B. dollar C. vulgar D. information A. bring back B. lack C. show around D. frighten A. astonish B. mm C. national D. feather