单项选择 ( 共15小题,每小题1分.满分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.并在答题卡上将该项涂黑.21． -Please sit down and have a break. You have been working on this machine nonstop for two hours. -No, thanks. . A．I’m not in the least tired B．I’m too tired to move C．I’m not a little tired D．I’m a bit tired 【查看更多】
