◎ 题干
用 Since或for填空。
1. I've been practicing the piano           10:30
.2. I've been waiting         half an hour.
3. He has been living here       1999.
4. Mike has been running       10 minutes.  
5. He has been working here       he came here.
6. Jim has been talking with Tom       two hours.
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“用 Since或for填空。1. I've been practicing the piano 10:30.2. I've been waiting half an hour.3. He has been living here 1999.4. Mike has been running 10…”主要考查了你对  【介词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。