A. as B. pardon C. let off D. detour A. machine B. failure C. graduation D. private A. pile B. create C. confidently D. had A. clever B. crosswalk C. go on D. at last A. differ B. pack C. orange-and-white D. steel A. cup B. size C. cheaply D. expect A. up to standard B. sexual C. devote D. lead A. landmine B. storm C. fight D. famine A. perilous B. schoolbag C. unable D. output A. satisfy B. Santa Claus C. vicious D. in the face of