A. agree B. smooth C. boarding D. hardened A. quicken B. peace C. rag D. set aside A. fall down B. faint C. one after another D. well A. cut short B. applicant C. Japan D. starfish A. place order B. import C. rocket D. rainfall A. inside B. towards C. Chinese medicine D. field A. knowledge B. hybrid rice C. part D. go skating A. pollution B. light-colored C. trickle D. be surprised at A. warning B. sharp C. already D. wood A. impossible B. cat C. recorder D. freely