A. art B. in theory C. discreetly D. be sure about A. version B. cup C. pray D. P.E A. sire B. source C. blackboard D. doesn't A. library B. jigsaw C. black-and-white D. be bad for A. school B. worn C. wore D. design A. uniquely B. math C. concise D. teach English A. reinforce B. rickety C. cross D. playground A. zebra crossing B. abject C. subject D. mime A. have B. for a time C. knife D. blow up A. science B. embarrassed C. bedraggled D. brightly