A. unutterable B. determine C. reading D. perhaps A. Tai Chi B. uncertain C. carefully D. ill A. sort out B. climb a hill C. face to face D. feel awful A. newsagent B. fourth C. illness D. mother A. hinder B. accustom C. total D. take A. spread B. can't help doing C. aerospace D. cough A. companion B. soft toy C. head-on D. weak A. headache B. odd C. blow D. instruction A. out of breath B. condition C. checker D. will A. global warming B. all over C. rode D. treasure