Sue yen sees her chemistry professor in class several times a week. but when sue sees the professor in the grocery store, she doesn't recognize her. this best illustrates the importance of

I don't now if this is most official term, but you could use '"context" to correctly complete the sentence

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !