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根据短文内容，回答下列问题。
Harold was very disappointed(失望的)last night. All the other students in his English class went to a party at the house of their teacher, Miss White, but Harold had never been there. He followed his teacher's map, but he made one little mistake.
From their school, he walked along Main Street to Central Avenue(大街)and turned left. He walked to the bus stop, opposite the post office. He took the Central Avenue bus and got off at Fifth Street. He turned left and walked along Fifth Street three blocks(街区)to Park Avenue and turned right. He walked to the bus stop at the corner of Park Avenue and Sixth Street. He took Bus Number 42, but he got off at the wrong stop. He got off at River Road instead of Rolling Road. He turned left and walked on, and at last he got completely lost.
Harold was very unhappy. He really wanted to go to the party last night, and he couldn't believe he had made such a stupid mistake!
