A. be occupied with B. fee C. epic D. recur A. explorer B. set about C. hull D. livelihood A. gradually B. on average C. mother D. warm-hearted A. graph B. music C. halfway D. set up A. wicked B. equal C. protective D. clerk A. piece B. orphanage C. representative D. escape A. astonished B. mother tongue C. in trouble D. noisy A. stage B. quiet C. agriculture D. Great Wall A. in time B. born C. home D. peaceful A. perturb B. selfish C. in a hurry D. depend on