24、A survey of the opinions of experts _____that three hours of outdoor exercise a week ______ good for one’s health．

A．show；are          B．shows；is         C．show；is          D．shows；are

22、Obama,____president ofthe USA, won______Nobel Prize for Pease in 2009.

A．\; a          B．a;the           C．＼;the          D．the;a

21、Under the circumstances I usually think of the great effort, and courage it      for the girl to come back and apologize．

A．made        B．afforded           C．spared        D．took

20、The two boys are alike in age, but       they are as different as day and night．

A．anyhow        B．besides        C．otherwise            D．moreover

19、All his attention____on the computer game, he even didn't notice his mother enter the room．

A．has been fixed        B．was fixing        C．was fixed         D．fixed

18、---CanI smoke here?

---No．On no condition____in the museum．

A．is smoking permitted                                B．smoking is permitted

C．was smoking permitted                            D．smoking was permitted

17、On weekends when Jane comes back home from school, she eats everything in         .

A．scene         B．sight           C．view            D．range

16、I would have called you up for help had it been possible, but I        your phone number then．

A．hadn't had          B．didn't have            C．shouldn't have              D．couldn't have