―The window is dirty．

―I know．It          for weeks．

       A．hasn’t cleaned                              B．didn’t clean   

       C．wasn’t cleaned                             D．hasn’t been cleaned

They give performances in the club every night，for which they are paid       ．

      A．in common          B．in fact                 C．in cash                   D．in peace

There is no doubt        John will come by bus．

      A．if                        B．why                    C．that                       D．how

I was         enough to believe a stranger．

      A．foolish                B．shy                      C．wise                      D．clever

Put on the hat．It will protect you           the burning sun．

      A．with                    B．about                   C．from                      D．off

直到这次期中考试后他才意识到英语非常值得学。（It, worth）

务必确保你要学会游泳，因为这有可能意味着生还是死。（Make sure）

我已经告诉过你我做出这道题的方法。（way）