口语应用。根据对话的内容，用适当的句子补全对话。（满分10分）
A: Have you seen Jim these days?
B: No, he’s gone to Japan to see his grandfather.
A: 20. Has he ever been there before?
B: Yes, he lived there before he came here.
A: 21. Hong long will he stay there?
B: About one month.
A: 22. Have you received a letter?
B: Yes, I’ve just received a letter from him.
A: 23. What did he say in the letter?
B: He said he had a very good time there and he also wanted me to give his best wishes to you.
A:24. It’s very nice of him?
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解析：
此题重点考察情景对话的对话规则，及对整个语境的整体把握。注意时态的正确运用，和英语的习惯性表达。