练习一：选用恰当的时态，用括号内动词的正确形式填空。
Last year Mr. Smith _____ (go ) to China and Japan. He _____ (have) a wonderful time. He _____ (do) a lot of different things and _____ (talk) to a great number of different people. He _____ (eat) Chinese and Japanese food and _____ (visit) a lot of interesting places. When he _____ (go) back to England, he _____ (be) very tired.
练习二：句型转换：写出下列各句的否定形式（在可能的地方用缩略形式），
1.Professor Jennings taught them English in 1990.
2.Tom had a wonderful time in xian.
3.Mary found her keys in her bedroom.
4.Xiao Wangs parents lived in Shanghai ten years ago.
5.Jane went to the Great wall two or three times.