Answer the following some people think that english is a hard language to learn, but experts disagree. they say that no human language is more or less difficult than any other. all babies learn to speak the language of their parents very quickly. most babies learn to walk by the time they are a year old. they learn that it's easier for them to get what they want if they can speak. a baby born to parents who speak english will learn english as quickly as a japanese child whose parents speak japanese. of course, experts agree that learning a second language can be much harder. what is this passage mostly about? a. how no human language is more difficult to learn than any other b. how babies can learn the language of their parents very quickly c. how english is a harder language to learn than japanese d. how learning a second language is incredibly hard to do

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