书面表达错误分析·动词形式错误

　　(1) In short，things have began to improve since schools were called on to reduce learning load．(应为：begun)
　　(2) I was studing in my room when the telephone rang．(应为：studying)
　　(3) The taxi driver drived so fast that the car knocked into a truck．(应为：drove)
　　(4) That afternoon I went swiming together with my friend，Li Dong．(应为：swimming)