The sentence is stating what the person did first in the list of all the things he/she did in the rest of the paragraph.
<span><u><em /></u>See in the sentence how it says, <u><em>“First,</em></u> I went to the wrong classroom for math."
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Answer:
The man was riding a donkey in the valley.
Explanation:
D. Bilbo fears all Wargs because they are allies of the goblins. He is assuming that every Warg is out to get them because they are not aligned with the goblins and the Wargs are.