21. Slumdog Millionaire, ___ rags-to-riches tale of children from ____poor areas of Mumbai, won eight Oscars in February, including the best picture Academy Award.

A. a; the                B. the, the             C. a, /                          D. the, /

22. Lights went out at tourism landmarks and homes across the globe on Saturday for Earth Hour 2009, a global event _______to highlight the threat from climate change.

A. designed                B designing                 C. was designed.          D. has been designed

23. Your house is very attractive, especially the furniture is more splendid than __ I have ever seen.

A one                  B. it                  C. the one            D. that