短文改错。 America is a huge country, but traveling is very quickly and very easy. The visitor who wants to see much of the country as possible should travel by bus. There is fast bus services between cities, for an example, the Greyhound Bus Service, that has a picture of a dog on the side of the bus. The seats are soft without a reading lamp over each one and they lean on back for sleeping at night. On these long- distance buses there is a toilet or other comforts. Stops are making for meals at roadside restaurants. It takes about three and a half day to cross the country by bus. 1.______ 2.______ 3.______ 4.______ 5.______ 6.______ 7.______ 8.______ 9.______ 10.______