821. I saw him playing football on the playground.我看见他在操场上踢足球。

820. I hope we can see each other again some time.希望还能有相见的机会。

819. I had to sit up all night writing the report.我不得不熬通宵写报告。

818. I feel I am the happiest person in the world.我觉得自己是世界上最幸福的人了。

817. I am looking forward to your visit next week.我期待着你下周来访。

816. How do you like our English literature Prof.?你觉得我们的英国文学课的教授怎么样?

815. He said he was educated in the United States.他说他是在美国受的教育。

814. He has tasted the sweets and bitters of life.他已尝遍了人生的甜酸苦辣。

813. Great efforts ensure the success of our work.巨大的努力确保了我们工作的成功。

812. Betty and Susan are talking on the telephone.贝蒂和苏珊正在通电话。