A. not until B. have dinner C. take part in D. background A. ring off B. busy C. record D. thriller A. do B. have a rest C. ask for help D. living A. on the way out B. have lunch C. blackberry D. amusing A. camel B. string C. weekday D. abstract A. half B. used to C. genetics D. railway A. format B. sleep C. a great number of D. go back A. face B. orally C. sniff D. take one's order A. whether B. fall ill C. advisory D. make A. kitchen B. onion C. radiation D. businessman