He must have passed this way, _____ here are his footprints.

     A. for                B. now that                   C. because of      D. since

— So big a whale！It weighs 10 tons．

— Yes , I have never seen _________ one．

A．a heavy                B．the heaviest         C．a heavier     D．a heaviest

One family in the UK went back in time to see ________life was like without all the invention we have today．

   A．how                  B．which                 C．what           D．why

 I _________a flu（流感） when I was on a spring outing with my classmates．

   A．made up            B．picked up             C．took up        D．brought up

He put his nose_____ the window and signed to my mother to open the door.

     A. in                         B. against                            C. on                 D. at

       Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it.

       A. to see                       B. to be seen                 C. seeing               D. seen

 You _____ him at the meeting yesterday. He has gone to America.

       A. can’t see                                                     B. can’t have seen

       C. mustn’t have seen                                        D. needn’t have seen

Although the whole world is faced with the economic crisis, the exchange rate is in our ___________at the moment.

         A. favor                 B. way                  C. support       D. advantage

I’ll go to the library as soon as I finish what I _________．

    A．am doing             B．was doing            C．have done    D．had been doing

We arrived at work in the morning and found that somebody        into the office during the night．

    A．broke              B．had broken            C．has broken     D．was breaking