Answer:
I believe it is due to him drinking it agressive like or with great intensity as "drink" or "sip" would not correctly show how it was drank.
Answer:
I think a business writer has to check the date a source was publish to see is the information is up-to-date or to see if the source is a primary or secondary source.
The phrases “very gifted” and “who would succeed” illustrate that Schweitzer is talented and destined to do well. These words are directed toward Albert(Schweitzer) specifically. For that reason, this is your answer:)