The answer is:
At age nine, students began learning Latin, which was the language of international affairs.
Relative clauses provide additional information about something that has already been mentioned. In this case, the subordinate relative clause "which was the language of international affairs," makes a further comment about the previously mentioned Latin language.
Answer:
Blue
Explanation:
The word "Blue" sounds the best preceding bird.
This paragraph supports the claim by providing an example of a situation where people need more sleep to function. Doctors do a lot of work on the job that requires higher brain function, as stated by the paragraph. The study mentioned provides good evidence for the fact that people should be well rested, saying it causes less mistakes.
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