21、____ that you are chosen to be a volunteer at the London Olympic Games, what will you do?

A．Assumed     B．Assuming        C．To assume      D．To be assumed

20、---What’s your impression of the Great Wall?

---Wonderful! Once ____ , it can never be forgotten．

A．seen         B．seeing          C．being seen           D．saw

19、Barack Obama delivered a speech to 500 local youths during his visit to China, many of ____ from Fudan University and Tongji University．

A．them               B．whom              C．which          D．who

18、You can hardly imagine the difficulty the woman had ____ her children．

A．brought up                    B．to bring up

C．bringing up                            D．to have brought up

17、After five hours’ drive, they reached ____ they thought was the place they had been dreaming of．

A．where          B．what         C．which         D．that

16、---The two pairs of shoes are ____ the same size．

---But they are different ____ color．

A．of; from          B．of; in          C．in; from          D．in; in

15、The award ceremony will be ____ live by CCTV tomorrow．

A．interviewed        B．covered          C．show       D．reached

14、The storm left, ____ a lot of damage to this area．

A．caused                                       B．to have caused

C．to cause                                     D．having caused

13、The coffee is wonderful! It doesn’t taste like anything I ____ before．

A．was having         B．have        C．have ever had        D．had ever had

12、Fans from miles around crowded into the stadium for the concert of Jay Chou on September 4^th, 2010,____ are popular with teenagers．

A．many of his songs                                     B．many of whose songs

C．many of which songs                                D．and many of whose songs