题目内容

用 for  或 since填空。
1. He's been waiting for you ______ two hours.
2. John has been living here ______ 2008.
3. I've been staying in London ______two weeks.
4. Jack has been studying French ______ he was mine.
5. I slept only ______ two hours last night. Now I feel very tired.
1. for   2. since   3. for  4. since   5. for
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