Read the sentence.
george thought the hot weather outside was insufferable.
if the prefix sub- (or suf-) means “under,” what does insufferable mean?
not able to bring under; overwhelming
not able to speak under; silent
not able to stay under; anxious
not able to pass under; blocked

When should you use encyclopedias such as wikipedia? a. never, it is not appropriate to use this source in college b. it can you get an overall understanding of the subject matter but is not considered a college-level source c. as long as wikipedia isn't the only source, it is always appropriate to use this source

Which two elements does this excerpt from a christmas carol by charles dickens contain? "a small matter," said the ghost, “to make these silly folks so full of gratitude." "small! " echoed scrooge. the spirit signed to him to listen to the two apprentices, who were pouring out their hearts in praise of fezziwig: and when he had done so, said, "why! is it not? he has spent but a few pounds of your mortal money: three or four perhaps. is that so much that he deserves this praise? " "it isn’t that," said scrooge, heated by the remark, and speaking unconsciously like his former, not his latter, self. "it isn't that, spirit. he has the power to render us happy or unhappy; to make our service light or burdensome; a pleasure or a toil. say that his power lies in words and looks; in things so slight and insignificant that it is impossible to add and count ’em up: what then? the happiness he gives, is quite as great as if it cost a fortune." he felt the spirit's glance, and stopped. "what is the matter? " asked the ghost. "nothing particular," said scrooge. "something, i think? " the ghost insisted. "no," said scrooge, "no. i should like to be able to say a word or two to my clerk just now. that's all."

The “big dig” the “big dig” (the central artery/tunnel project) has been complex and challenging. located in boston, massachusetts, this tunnel is eight lanes wide and three-and-a-half miles long. what is most amazing about this tunnel is that it is constructed under a major highway and skyscrapers located in boston’s financial district. construction crews used “clamshell excavators” during this dig. these machines carved narrow trenches, and then a special substance was pumped into the trench to keep the dirt from caving in. finally, steel beams were lowered into the trench and concrete was pumped in. one problem that engineers faced while constructing the tunnel is the fact that the soil beneath boston is extremely loose and soggy. engineers solved this dilemma by freezing the soil and pumping very cold water into pipes beneath the city. to strengthen the soil even further, a special type of glue was injected into the ground to with the consolidation of the soil. 23 which phrase best defines the word excavator as used in the passage? a. a device used to measure underground temperatures b. a device used to level uneven surfaces c. a device used to move heavy objects d. a device used to dig holes