听录音,将句子补充完整。
1. The children are standing ________.
2. The ________ are laughing loudly.
3. The ________ are sitting quietly.
4. The cat is running ________.
5. -Can you play basketball?
    -No, I can't. It's_________.
1. quietly  2. boys  3. men    4. quickly  5. hard
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