Read these lines from canto xxii: a. demon armies marching with dante b. demons torturing sinners c. frogs covering the ground d. rivers of hell converging so here on all sides these sinners squatted, but the instant barbariccia stepped forward, they dived back underneath the boiling pitch. i saw, and still my heart shudders with it, one lag behind — just as sometimes one frog will stay back while another leaps below — and graffiacane, the closest to him, hooked him up by his pitch-knotted hair and hauled him out — he looked just like an otter! what is dante describing here?

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