This is correct. You can notice this occurrence on acronyms such as NASA, CIA, FBI, etc...
I think is C. I'm not sure. Sorry if I'm wrong
"Bee" has no meaning to a person who doesn't speak English, because it isn't a word you say everyday. It isn't very important to know what a bee is because it is just a bug, and bugs aren't very important to somebody who doesn't speak English. If people want to learn English, then they would need to know something we say everyday and that is important to everyday life, like food or sleep, not bee.
Answer:
became
took
was
changed
Explanation:
In the last hundred years, became much easier and more comfortable. In the 19th century, it took two or three months to cross North America by covered wagon. The trip was very rough and often dangerous. The situation changed a great deal over the last century. Now you can fly from New York to Los Angeles in a matter of hours.
