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C. within D. upon 3. There were some chairs left over ______ everyone had sat down. A. when B. until C. that D. where 4. A rest today means ______ extra work tomorrow. A. to do B. do C. doing D. done 5. In some parts of London, missing a bus means ______ for another hour. A. waiting B. to wait C. wait D. to be waiting 6. While in the United States, I visited cities ______ New York, Chicago and Boston. A. such like B. as C. for example D. such as 7. I love ______ tea and coffee. A. drinks such as B. such drinks as C. drinks like 8. I don’ t read such difficult books ______ I can’ t understand. A. as B. for example C. which D. that 9. An increasing number of students, year by year, across China ______ hard to realize their dream of studying abroad. A. try B. have tried C. will try D. are trying 10. The number of registered participants in this year’ s marathon was half ______ . A. that of last year’ s B. those of last year’ s C. those of last year D. of last year’ s 11. We always keep ______ spare paper, in case we