不同的教材有不同的语法. 1.一般过去时. eg: I went to the park with my friend yesterday. 2.一般现在时. eg: She usually goes to school by bike . 3.现在进行时. eg: I am doing my homework now. 4.现在完成时. eg:She has done her homework. 5.一般将来时. eg:I will go to Guangzhou with my parents tomorrow.