A. pay attention to B. go down C. purchase D. later A. receive B. freshwater C. employee D. encounter A. certainly B. go climbing C. canyon D. nature A. magazine B. knee C. sound D. strawberry A. share B. pierce C. advantage D. command A. biscuit B. perch C. rational D. queue A. team up with B. dome C. way D. be likely to A. safe B. burglar C. intimate D. fasten A. post B. dinghy C. sooner or later D. school uniform A. therein B. in debt C. wait a minute D. great