Вставить пропуски 1) Fifty years ago there was a . here. Then all the trees were cut and many. and factories were built. 2) The. are a . of mountains which divides our continent into.and. 3) The factory cant work. We have.a of copper. 4).,well have a . of it soon. 5) . of gold in California were in the middle of the 19th century.