I guess formal and informal refer to two types of essay - you can write a formal essay where you avoid conversational language and such and where you need to be very professional, or you can write informally where you don't have to think about such things, it is very casual.
Answer:
ok i wonder what grade this is because i am not understanding this.
<span>But what in America has called to the Chinese and brought about the establishment of vibrant, growing Chinatowns. As we take a look through the years at important milestones in Chinese immigration to the U.S.
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Answer:
B. It represents Aengus's desire to capture the beauty he saw when he was young.