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By boat——We can often see many people are in a boat, enjoying the beautiful scene along a river of a lake, and they can also enjoy hippos(河马)and crocodiles from a nearer distance.
By hot balloon(热气球)——In the early morning, when the sun is beginning to rise, a large hot balloon is also starting its journey. Taking a hot balloon makes most of the travelers excited. After some time, the balloon will land in a certain place, and the waiters will serve people a delicious and special breakfast. But the cost of taking a hot balloon is also very high. A person should pay 400 dollars for an hour’s trip.
( )31. Which is the most common way of traveling in Tanzania?
A. By bus B. By plane C. By boat D. By hot balloon