A. youth B. recording C. action D. protect A. once in a while B. burial C. vole D. say hello to A. talk back B. skirt C. RSVP D. down A. burning B. teach English C. sip D. forget A. prolong B. mother tongue C. hip D. remote A. wrist B. clumsily C. clothes D. come round A. vary B. dislike C. green D. unsettle A. twenty-five B. sightseeing C. favour D. be free A. rude B. governor C. brown D. timetable A. by coincidence B. southern C. performer D. game