用合适的介词填空。

1. The teacher is talking _____ my mother.

2. We walked _____ Chang'an Park yesterday.

3. My mother went to Shanghai yesterday. Now she is arriving home ______ Shanghai.

4. I like dogs. So my father wants to buy dog ______ me.

5. I looked ______ many video shops. At last, I found the CD.

机动车落水后，要迅速关闭车窗阻挡车内进水，短暂闭绝空气，可打电话告知救援人员失事地点，等待救援。