[Video] Q22: No change or best- “engineering,” or best: “engineering” or best, “engineering,”

Explanation for Question 22 From the Writing Section on the 2017 April Sat

Question number 22, um, 2 through such initiatives, beaver populations are doing what they do best engineering, 3 healthier, more stable ecosystems. So what we see here is a independent 4 clause kind of leading out and then some kind of, 5 uh, punctuation here and then sort of for dramatic effect, 6 um, what the ultimate results of beaver populations 7 is. So what we want to look at here, 8 um, first we'll see our no change option, which uses a semi-colon because 9 this second piece is a dependent clause, 10 rather than an independent, we cannot use a semi-colon here. 11 Semi-colons are only used to connect two independent clauses. 12 So the no change option is out 13 Answer choice B uses a dash. 14 Um, that's a good device to use here in order to connect that independent 15 clause, the dependent clause and draw attention to the dependent clause for dramatic or 16 rhetorical effect. Um, what were the issue here is with this comment at the 17 end of engineering, there's really no need to put that comment in. 18 It doesn't really make sense to break off engineering from what is 19 actually being engineered. Um, engineering here is kind of the verb and then healthier, 20 more stable ecosystems is the noun. 21 We don't want to separate the verb and the noun. So there's no reason 22 for that comma. Um, the dash really isn't the issue here, 23 but still we eliminate choice B because of that problematic comma at the end, 24 uh, answer twice, see, using a dash, 25 uh, excuse me, usin...