说出下列句子中连接用法相同的句子、单词或短语的单词：
1. The sun shone out brightly and the mist cleared away.
2. You may go, but I must remain here.
3. Cold and damp was the maiden’s grave.
4. The grass grows in the valley and on the mountain side.
注：短语是没有动词的一组相关词语的组合。
连接一个句子中用法相同的句子、单词或词语的词，称为“连词”。
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