µÚÒ»½Ú    µ¥ÏîÌî¿Õ£¨¹²15СÌ⣬ÿСÌâ1·Ö£¬Âú·Ö15·Ö£©
´ÓA¡¢B¡¢C¡¢ DËĸöÑ¡ÏîÖУ¬Ñ¡³ö¿ÉÒÔÌîÈë¿Õ°×´¦µÄ×î¼ÑÑ¡Ï²¢°Ñ´ð°¸´ðÔÚ×îºóÒ»Ò³µÄ´ðÌâ¾íÉÏ¡£
21. I took a taxi and arrived at          airport just in time to see          president off.
   A. a ; the                B. the ; a                C. a ; a                D. the ; the
22. - Let’s surf the Internet and download some new songs.
   -        
   A. No way    !            B. Why not?            C. It’s my pleasure.        D. Me, too!