A. mad B. take the lead C. not at all D. colonel A. reason B. stair C. optimism D. merchant A. examination B. age C. realize D. date from A. shrug B. gain C. sadly D. energetic A. conceal B. thick C. no idea D. catch A. help with B. climate C. around the world D. boot A. sand B. return C. noodles D. point at A. strike B. clerk C. war D. sum A. mankind B. in the beginning C. ticket office D. place of interest A. infectious B. church C. hurry D. millennium