A. sum B. claim C. invaluable D. go back A. mysterious B. settle C. effortlessly D. ascertain A. creature B. bookshop C. take a vacation D. indifferently A. destruction B. exit C. or so D. theatre A. tidy the desk B. along with C. slam D. fierece A. stare B. combine C. sharp D. transport A. ups and downs B. windy C. rooster D. myth A. generous B. hearing loss C. best-known D. teacup A. nicotine B. how old C. cover D. windowsill A. moonlight B. Olympics C. sea D. reputation