A. ring B. problem-solving C. something D. acknowledge A. ours B. unsmiling C. teacher D. deck A. outdoor activity B. weird C. five D. rubbish bin A. outside B. climb a hill C. abundant D. keep in touch A. on business B. theirs C. Civil War D. paperwork A. because of B. nor C. fourth D. advent A. jumper B. railway station C. soy D. retrace A. go into B. squire C. persecute D. sick A. participate B. sculptor C. hand in D. due to A. circle B. watch over C. fix D. first