Answer:
It is preferable to study English in an English speaking country
The narrator uses the word never to tell the audience that he or she will never forget their day in camp. The narrator goes on to finish the paragraphs with “Never” To conclude and Bring together the idea that they will never forget.
The answer is
Yet.
A coordinated conjuction is a word that joins or coordinates two senteces together, in this case the word yet is conectint he was but a child, and giving meaning to the whole sentece by conecting to he did so much for others, if you read it without the yet, the sentence looses force in the statement.