The correct answer should be additionally.
The word additionally would provide the best transition between these two sentence. It is so because you have one idea in the first sentence, and then you want to show another idea very similar to the first one in the second sentence. Using additionally to convey that is the way to go.
Answer:
The crew follows Odysseus’s orders by tying him up.
and
Odysseus’s crew continues to row, even when he is tied up.
French is easier and spoken in more countries.
Answer:
Charlie, and the reader as well, both begin to have an inkling that his intelligence may not be permanent as he listens to Dr. Nemur's presentation in "Progress Report 13." Charlie even realizes that Nemur did not take into account his rapid rise in intelligence, and that now, Charlie may even regress into a lower IQ than before the experiment.
