题目内容

根据句意和汉语注释,写出单词的正确形式。
1. When the doctor came, the victim has already stopped _______ (呼吸).
2. _______  (立即), the enemy disappeared on the early foggy morning.
3. It's not surprising to see so many _______ (推销员) in such a big electrical shop in China.
4. As we know, air _______ (污染) might cause many serious diseases.
1. breathing       2. Immediately         3. salesmen        4. pollution

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