A. oil rig B. headmaster C. update D. disunited A. huge B. customize C. serious D. website A. mumble B. worry C. shall D. storybook A. in need B. awesome C. look out of D. smooth A. Thailand B. bar C. color D. train A. tidal B. brimful C. sociologist D. as long as A. undertake B. adverse C. bathroom D. choir A. microscope B. save C. albatross D. aborad A. keep to the right B. bow C. email D. fame A. brown B. purpose C. list D. afterwards