21. Почему происходит смена природных зон по поверхности Земли? Ответ должен содержать не менее двух причин

1) if they (not to go) to Moscow, they (not to hear) the famous musicians

2) my father (to have ) more free time if he (not to read) so many newspapers

3) if you (not to be) busy, you (to come) to our party

4) i (to translate) the text if you (to give) me your dictionary for a couple of days

здравствуйте.как это прочитать . What`s The Time? What`s the time? – it`s nearly noon – Dinner time is coming soon. Now it`s two and now it`s three, Now it`s four and time for tea, And now all is done and said, Nine o`clock and time for bed.