解释句子求解！~

1.Linda froze when she saw the picture。（froze下划线）

2.We should stop them from polluting water。（polluting 下划线）

3.I didn´t wash clothes by myself in the first place。（in the first place下划线）

4.Students should obey teachers at school。(obey下划线）

5.All water returns to the sea in the end。（returns下划线）

1.惊呆了

2.污染

3.在第一个地方

4.服从

5.回归