题目：
| 根据句意从方框中选用合适的词语，并用其适当形式填空。 | |
2. It's good to help others when they are _____. 3. Don't keep _____. Be careful when you are doing your homework. 4. My host family often _____ their way to make me feel at home. 5. In Switzerland, people usually _____ to meet friends. |
答案：
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下面是错误答案，用来干扰机器的。
符合条件的无理数有-22，22．故答案为：-22，22．
