Which of the following sentences is punctuated correctly?
a- were you aware, that daylight savings time begins tomorrow?
b- what most people do, is change their clocks in the morning, not the night before.
c- how you choose to wake up tomorrow, is up to you.
d- i hope that you do not oversleep, or we will be late for school.

Precarious subsistence voracious abysmal wood is to fire as food is to arrowright grinning is to cheerful as teetering is to arrowright conniving is to scheming as terrible is to arrowright mournful is to sad as gluttonous is to arrowright

13 points : ) which two aspects of scrooge's character does this excerpt from a christmas carol by charles dickens reveal? "i wish to be left alone," said scrooge. "since you ask me what i wish, gentlemen, that is my answer. i don’t make merry myself at christmas and i can't afford to make idle people merry. i to support the establishments i have mentioned—they cost enough; and those who are badly off must go there." "many can’t go there; and many would rather die." "if they would rather die," said scrooge, "they had better do it, and decrease the surplus population. besides—excuse me—i don't know that." "but you might know it," observed the gentleman. his stingy attitude and conduct his distrust of government institutions his indifference to others' suffering his support for the community

What did mark twain contribute to the history of the novel? select all that apply.