When the winter holiday came to an end, we didn't go back to school. We had to take online classes（网课）at home because of the novel coronavirus outbreak（新冠肺炎爆发）.

    On the screen（屏幕）, our teachers gave lessons using PPTs（课件）. Their PPTs were great and they explained（解释）everything clearly（清晰地）. Since we took classes online at home, there were no teachers around . Still I did a good job. I listened to the teachers carefully. I did as they said. I took notes and worked out the problems. I always did my homework on time. With everyone's help, the online classes went well. I think we should thank our teachers and also give ourselves（我们自己）a thumb（拇指）.