A. expedition B. shrug C. compare D. get A. tableland B. safety C. style D. courtyard A. grass-seed B. Spain C. aborad D. hover-train A. fluency B. half an hour C. navigation D. Tian'anmen Square A. porcupine B. come true C. pass away D. compare to A. oceanarium B. oh C. fall ill D. erode A. prevent from B. take pride in C. himself D. rugged A. cautious B. sounding C. insure D. spring A. be in trouble B. tuck C. message D. sediment A. take a message B. cushion C. hardened D. compose