39．A．from                   B．between               C．among                   D．through

38．A．dangerous            B．funny                  C．easy                       D．hard

37．A．helped                 B．filled                   C．proved                   D．named

36．A．rapid                   B．main                   C．famous                  D．modem

Buses ale still the ___36___ public transportation in all large cities of China．There are many routes（路线）of buses in all large cities．The buses are always ___37___ with numbers such as Route 1，Route 27 and Route 320．These numbers make it ___38___ for passengers to find out the buses they want to take．Buses in cities often run ___39___ 5：00 in the morning and 23：00 at night each day．There are often 5 to 10 minutes between every two buses．

It is also very convenient（方便的）to ___40___ in all large Chinese cities．Taxis are running around the cities and you Can always find them around big hotels，railway stations and airports．

If you want to go somewhere ___41___，you can take trains or planes．In the past，it was not very ___42___ to take a train in China for the trains were slow and crowded．Today，things have changed．The Chinese government has been building new railways and ___43___ the running speed of trains．As for planes，now there're many airline companies（航空公司）in China．Many cities have built highways from the ___44___ to the city centre．That greatly ___45___ the traveling time for passengers．

34．Don't _________ the animals in the zoo．They have their own food．

A．point to             B．play with           C．watch              D．feed

33．I'm writing a report on _________．It's about how to grow wheat．

A．gardening           B．agriculture          C．fishing              D．education

32．This coat is warm enough to _________ you _________ the cold．

A．put；into          B．stop；from         C．protect；from       D．help；with

31．―What's _________ of the new camera?

―It's smaller and lighter．Also，it can take more photos．

A．feature             B．color               C．problem            D．cost