When my siblings were fighting, our mom would say, "whoever stops fighting first will get a candy bar." Sounds better ;)

What Chris said. If you saw this sentence somewhere, whoever wrote it was incorrect. :)

1. Reading the fairy tale "The Chronicles of Narnia" let indelible IMPRESSIONS ON my children. 2. The criminal was petrified when he heard a lawyer's indubitable proofs. 3. I don't think, guys, that it's the right path to cling to the one idea and reject the others. (But I would say, "I don't think, guys, that it's right to cling to one idea and reject the others." Or instead of right, "a good idea to...") Hope this helps!

It's used to show "in addition to this," that "there's also that thing." It emphasizes the meanings to make them stronger. "It is not only expensive, but also likely to break." "They do not only look good, but also taste great!"

In its simplest form, think of "whereas" as a fancier, nicer word for "but." It's a conjunction (connecting word, like and, but, so, yet, for), and it talks about the difference between two things. Let's use it in a simple sentence, and compare it with "but." An apple is red but a lemon is orange. An apple is read, whereas a lemon is orange. The meaning is the same. However, "but" is used in simpler sentences, "whereas" would be used in sentences with more complex thought, or academic and business English. Also note that "whereas" has a comma before it, *whereas* "but" doesn't. :) Whereas can be used in the beginning of the sentence (although personally I find it awkward), and "but" cannot be used in the beginning of the sentence. For example: "The climate in Country A remained the same, whereas the climate in Country B exhibited a variety of weather and climate changes over the course of the study." Hope this helps!

I'm American. I would say "is" for all of them, because it's shorter, but "equals" is another standard. By the way, be careful of your spelling of "natural"! Hope this helps.