Определите временные формы глагола=сказуемого. переведите предложения.1) they are a friendly family. 2) spring has come. 3) for many centuries economists have been dividing economic theory into macroeconomics and microeconomics. 4) the price for small computers had fallen.

1) They are a friendly family. Они  - дружная семья. (Present Simple,глагола to be)
2) Spring has come.  – Весна пришла. (Present Perfect)
3) For many centuries economists have been dividing economic theory into macroeconomics and microeconomics. Многие столетия экономисты делили экономическую теорию на макроэкономику и микроэкономику. (present perfect continuous)
4) The price for small computers had fallen. – Цена на маленькие компьютеры упала. (Past Perfect)