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(1) when people get sick during the flu season, they are not always sure whether what they have caught is the flu or a cold. (2) it's true that the symptoms of the two overlap. (3) however, there are some distinct differences between cold and flu symptoms. (4) first of all, people rarely get a fever when they have a cold. (5) in contrast, people with the flu typically get a fever of about 100 to 104 degrees fahrenheit, which lasts three to four days. (6) also, although a cold is at times accompanied by a headache, headaches are much more likely with the flu. (7) third, cold victims experience at most a few slight aches and pains. (8) but aches and pains are a usual feature of the flu and can often be quite severe. (9) finally, even though a cold never exhausts its victims, someone with the flu may suffer extreme fatigue.

q. sentence 3 contains how many contrast words?

a. zero

b. one

c. two

d. three

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