题目内容

用括号内所给单词的适当形式填空．

I’m sorry to keep you ________(wait)so long．

答案：waiting
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相关题目
用括号内所给单词的适式填空形空.
1. Nancy often _____ ( visit) her grandparents on weekends.
2. The old men have fun _____ (walk) in the qlet park.
3. A good _____ (begin) makes a good ending.
4. The little girl enjoys _____ (listen) to music.
5. Let me _____ (tell) you how to get there.

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