二﹑单项选择（本大题共20小题，每小题1分，共20分） 在各小题所给的四个选项中，选出可以填入句子空白处的最佳选项，并将答案写在题前的括号内。 ( )26.— Can you ______ English? — No, but I can ______ the piano. A.say；join B.speak；play C.say；want D.tell；play ( )27.— Can you play chess? — No, I ______. A.mustn’t B.can’t C.couldn’t D.needn’t ( )28.Dick often helps him ______ his math. A.at B.with C.of D./ ( )29.We want three good musicians ______ our school show. A.for B.join C.to D./ ( )30.Can your brother ______ well? A.dance B.to dance C.dances D.dancing (
