Think about what you learned about speculation, buying on margin, and the stock market. Choose the right word or phrase that ends each sentence.
In order for "buying on the margin" to work, stock values have to
Due to speculation, stock prices
DONE

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explanation:

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2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.