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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.

Fifty years ago there was a forest here. Then all the trees were cut and many buildings and factories were built.

The Rockies are a range of mountains which divides our continent into east and west.

The factory can't work. We have a shortage of copper supplies.

Hopefully, we'll have a delivery of it soon.

Discoveries of gold in California were in the middle of the 19th century.