She started to live in Hanoi 2 years ago (for)

1. She started to live in Hanoi 2 years ago. (for)
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2. He began to study English when he was young. (since)
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3. I have never eaten this kind of food before. (This is)
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4. I have never seen such a beautiful girl before. (She is)
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5. This is the best novel I have ever read. (before)
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