Вставить пропуски 1) fifty years ago there was a here. then all the trees were cut and and factories were built. 2) are a of mountains which divides our continent . 3) the factory cant work. we of have a of it soon. 5) of gold in california were in the middle of the 19th century.

1) Fifty years ago there was a forest here. Then all the trees were cut and many plants and factories were built.
2) The Urals are a chain of mountains which divides our continent into Europe and Asia.
3) The factory can't work. We have deficiency of copper ore.
4) Yes, we'll have a lot of it soon.
5) Mines of gold in California were in the middle of the 19th century.