The letter Mary had looked forward to ____her last night and she was very excited．

       A．reached              B．reaching      '   C．had reached       D．has reached

 The director asked me to finish this task by Sunday．How can I ____to?

       A．attempt               B．manage              C．decide            D．happen

 —How does the Internet ____us?

       —By sharing information free of charge．

       A．educate              B．improve          C．limit               D．benefit

 —Dear, you water the garden and I do the cooking．

       A．Why me?            B．Forget it．          C．No way．           D．Ok, that's settled．

 There has been a（n）____of sadness in the small town since a boy was drowned in the river．

       A．scene                                        B．atmosphere 

     C．condition                                    D．appearance

 I would rather you ____with us yesterday, but you left．

       A．had stayed?         B．stay                  C．stayed               D．have stayed

 —Remember the first time we met?

       —Sure．You ____in the supermarket．

       A．shopped             B．have shopped     C．had shopped       D．were shopping

 —I finished all my work today．

       —If____, you can help others with their work．

       A．so                    B．not                  C．possible             D．ever

 Medicine should be placed ____children's reach to make sure of safety．

       A．with                  B．within                C．out               D．beyond

 ____is known to us is that China has won five gold medals in the 2010 Winter Olympic Games.

       A．It                     B．As              C．What                D．That