A. limestone B. operate C. further D. weekday A. treasure B. accident C. obesity D. cascade A. space flight B. shaking C. sprout D. miraculously A. keep on B. globe C. posture D. alive A. prey B. sent C. however D. countryside A. silent B. topography C. automatic D. divide A. self-improvement B. various C. surround D. flood A. if B. name C. cherry D. salvage A. sight B. upper C. since D. potato chip A. British B. earthquake C. interviewer D. pillow