题目内容
用for改写下列句子1. I have kept the book since a week ago.
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2. His father has taught in that school since 1997.
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3. We have studied English since two years ago.
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4. I have been a teacher since I came to Shanghai in 1990.
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答案:
解析:
解析:
1. I have kept the book for a week.
2. His father has taught in that school for seven years. 3. We have studied English for two years. 4. I have been a teacher for 14 years in Shanghai.
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