21. I _________ in Shanghai, but now I ________ in Beijing.

 A. was used live; am used to live               B. used to living; used to live

 C. used to live; am used to living               D. was used to living; used to living

22. It was ________ fun to play on the beach that it attracted countless children.

A .such great                                                 B. so great

 C. such a great                                               D. so great a

23. I like drinks, ________ tea and coffee.

A. as                B. that is                 C. such as                D. for example