A. toilet B. warn C. like D. unsure A. concentrate B. overbalance C. run away D. rusty A. How about B. ample C. dry up D. new A. lucky B. around the world C. be interested in D. frequent A. take action B. horizon C. over D. lead to A. Sydney B. reuse C. describe D. have connection with A. solitary B. pocket money C. show D. mouth A. a little B. cargo C. Summer Palace D. cushion A. interstellar B. the Palace Museum C. warm D. whisky A. dozens of B. boxer C. fifty D. sub-zero