根据汉语提示完成下列句子，每空一词。
1. Study hard and (进步) every day.
2. Mr. Green has many friends at and . (国内外)
3. We are good friends,we have(保持联系)
each other for many years.
4. Remember not torubbish. (到处乱丢)
1. make progress 2. home abroad 3. kept in touch with 4. throw about
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根据最新人教版版和牛津版的初中英语教材的词汇量，一个水平较高的初中毕业生的词汇量应在2400左右。初中的单词和词组词汇量要求数量会不断增长。
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