A. response B. video C. planet D. ageing A. go sightseeing B. incompetent C. choose D. hard-working A. uncomfortable B. polar bear C. puncture D. tear A. take risks B. at the time C. in order to D. go over A. starfruit B. joust C. carelessly D. purpose A. boarding B. to start with C. volt D. exceptionally A. ID number B. get away C. catch one's attention D. effective A. without doubt B. landmark C. scent D. metaphor A. hang B. aphid C. adolescence D. city-state A. a kind of B. anger C. lifetime D. notice