26. ______ camera is not so expensive as ______, but it works well, too.
A. My; his B. Mine; him C. My, him D. Mine; his
27. —Can I park my car here? —Yes. You can park on _______ side of the street.
A. either B. neither C. both D. all
28. It’s difficult to live in a foreign country, _______ if you don’t speak the language.
A. exactly B. naturally C. usually D. especially
29. Tigers and bears are very dangerous. That’sthey have to stay in cages in the zoo.
A. why B. where C. how D. what
30. —_______ important tool the computer is! —I think so.
A. What a B. How C. What an D. How an
31. —Did you see the traffic accident yesterday?
—Yes. It happened when I ______ past the museum.
A. walk B. am walking C. will walk D. was walking