A. merchant B. South African C. health care D. woods A. booth B. take a shower C. primary D. traffic police A. aphid B. including C. achieve D. no A. definitely B. tremendous C. sleeve D. toilet A. Berlin B. household C. device D. owner A. pay B. trifling C. speech D. loser A. OK B. digital C. faint D. phenomenon A. normal B. itself C. imperceptible D. constant A. doubt B. Forbidden City C. comfortably D. moreover A. astronaut B. is C. scorn D. uncertain