A. beauty B. count C. chopsticks D. tendency A. biochemist B. make a list C. passive D. pig A. suit B. millionaire C. earn D. at the age of A. elephant B. shower C. observe D. smart A. stick to doing sth B. ping-pong C. devise D. actually A. full-length B. perform C. supersonic D. let down A. adaptation B. call in C. climb D. dirt A. word B. challenging C. pass by D. by hand A. distance B. be good at C. a glass of D. library card A. radiation B. jumping C. take in D. age