二、选择填空(共15小题；每小题1分，总分15分)
    从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1．My cousin can’t play _________piano，but he can play _________baseball very well．
    A．the；／    B．／；the    C．the；the    D．／；／
2．一_________did he stay in hospital?
       -About two months．
    A．When    B．How long    C．How often   D．How much
3．Wait for me! I have _________to tell you．