下面短文中有10处语言错误，每句最多有两处错误。每处错误只涉及到一个单词的增加、删除或修改。 增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。 删除：把多余的词用斜线（/）划掉。 修改：在错的词下划一横线，并在该词下面写上修改后的词。 注意：1.每处错误及其修改仅限一词； 2.只允许修改10处，多者（从第11处起）不。 It was our English teacher's birthday yesterday. Though English is a hard subject, but I like my English teacher lot, and so do my  classmates. She is nice to us and always tells us stories of the days when she was in her twenty.  Sometimes she even stayed in school to help students make up their lessons. She always encourages us and tells us do our best. We are gratefully to her, so that day we bought him a cake and a gift. We even make a big card for her, on it we wrote all our names. Seeing these, she was moving and had a big smile in her face.