Answer:
I think all of the above because without all of them your essay wouldn't make sense
This is false: it has a very negative connotation.
It refers to a smile that is mocking or contemptuous (or a remark that is mocking or contemptuos) - so it's not a genuine smile, but an ironic and sarcastic smile. It has a negative and not a neutral connotation.
(problem) I can't find my pen
(solution) ask someone to lend you one or retrace your day and look around for it.
I'm not sure if I answered this right but I tried
The most common noun in that sentence would be, Betsy Ross.
The answer is A: sweetest. Of the many apples you have tasted, which type do you think is the sweetest?