51.  Where else is water needed?

52.  Water is found almost every where .

53.  instand we saw rubbish every where .

54.  how I wondered where they'd gone .

55.  I must understand the place where I stood and the goal.

56.  Where we lived , we can see lake, river, well, and so forth, so we think that there is too much water for us, thus we use and waste lots of water without thinking .

57.  Scondly , we must use water when and where they are needed most.

58.  There are many sources where we can take fresh water like the rain and the river .

59.  Third, they can have a trip to where they want to know .

60.  First we all live in our society, we should know about where we live .