改错改错,短文改错,Last week our class organize an activity to thank

改错改错,短文改错,
Last week our class organize an activity to thank our teachers before graduation.On Thursday we had the meeting to discuss what to do.We came up with much good ideas.Finally,we decided to send them some gifts and doing some good things for them.The next day we werw carried out our plan.Some of us cleaned the teacher's office and decorated them with flowers,making it more comfortable for our teachers to work.Some helped wash their bikes but still others presented the prepared gifts to our teacher.They were moved very much.We felt proudly of what we had done for our teachers.