The two examples which correctly punctuate an essential expression or element in the sentence are:
Architecture, so popular with Native Americans, is still a flourishing art.
Mexico, where sports are popular, has hosted the Olympic Games at the World Cup.
Some constituents that alter a sentence are indispensable and restrict the meaning of an altered word or prhase, whereas others aren't indispensable and don't affect its meaning. The first ones are separated from the main idea using commas.
Mexico City is home to several museums that display the country’s past. Here we don't have any non essential element.
The National Historical Museum, which is in Chapultepec Castle, is concerned with Mexico’s history since the Spanish conquest. Here, information can't be ommited and in fact, shouldn't be set off with comas, since such expression contains essential information (it is not any National Historic Museum but the National Historic Museum which is in Chapultepec Castle).
The answer is number 4) These numbers show that teenagers care about others.
Sentences 1-3 show evidence to support the main argument, which is that teenagers help others. Sentence 1 gives an individual example, and on sentences 2 and 3, it presents statistical data.
Well saying dunno is an error in formal/academic writing. In academic writing you would have to write, i do not know, though.
Can you go into more detail on what this question entails? I am a little confused!
Alrighty, so, I believe the correct answer is C.) The narrator doesn't hint that she loves her brother, the narrator says she doesn't have any chores and D just sounds odd. C) Makes the most sense to me!
Hope this helps!! (:
