Write an essay about an event you're looking forward to attending in the coming weeks or months. Focus on varying your sentence structure by using the types of phrases and clauses taught in this lesson. You should include at least one example of each of the following: a. a participial phrase b. a prepositional phrase c. a sentence with two independent clauses joined by a conjunction d. a noun clause e. a relative, or adjective, clause f. an adverbial clause Your essay should be at least 150 words long. When you have finished your essay, find one of each of the types of phrases and clauses you have used, place brackets around it, and put a letter next to it. (You only need to mark one of each type of phrase or clause, even if you have used the form several times.)

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