Answer:
True
Explanation:
True, the commas act like parentheses. So we could say "His doctor could not identify the problem."
As for the periods, capitalization, and layout, it is all correct.
You could define what a drug test is
Hey :)
The Columbian trade was a significant crossroad in history that caused the expansion of exchange networks all through the world and for silver to be mined in the polosi mines in the Neworld, which caught the eye of China, who used to get their silver from Japan. China before long expected silver to be utilized as their type of money, making the interest for it to develop. The worldwide progression of silver all through the world influenced the financial arrangement of China by convincing unfamiliar exchange to be permitted to acquire silver.
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Number 2 from whom that's the answer
