почему людям из разных стран важно знать друг друга лучшк​

So that they know the traditions, customs of each other. To understand what can be done and what not, because if, for example, if someone goes the other way, he will not know how it is accepted there, and so he knows what can be done and what not.

I(was listening) to the radio while mary (was cooking) dinner.(did you buy) this book yesterday? last friday jill (went) home early because she (wanted) to see a film.when (does your brother usually get) home in the evening? jane always (brings) us a nice present.what (are those people doing) in the middle of the road?   (have you read) this book? while fred (was sleeping), judy (was watching) tv.when i (was) young, i (thought) mary (was) nice — but now i (think) she’s fantastic.jill (was walking) home when she (saw) her husband’s car outside the cinema.look there! sue and tim (are running) to school.jack’s father (does not work) in london — he (does not speak) english.joe (bought) a car yesterday.their father often (goes) to rock concerts.while you (were sleeping), mother (arrived).