A. bitter B. UFO C. myself D. look up A. woof B. teach C. chance D. manufacture A. to be honest B. site C. term D. surround A. win B. stay away from C. itself D. recede A. unfair B. selfless C. linguistics D. worm A. at school B. possible C. each other D. facilitate A. leaf B. rubble C. silk worm D. pretty good A. dressing B. telesurgery C. extinction D. education A. sexual B. sympathetic C. ageing D. video A. doorknob B. side C. footstep D. helpful