SAT Writing questions

Test Preparation SAT Preparation
1

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Why cannot it be D? (it’s B)

I took it as:
Subject: regulations
its verb: aimed
requires -> economy

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In which cases can “having” indicate a correct answer? (I mean, no problems with a choice) E.

Thanks!!

2
  1. Mentally add a "which" to the "aimed" clause:

Government regulations, * which are aimed at encouraging fuel economy, * REQUIRE…

Is it clear now that “regulations,” plural, is what you have to match? And that the “aimed” clause does NOT include the main verb and is thus basically irrelevant?

3
  1. @bodangles is correct. In this sentence, "aimed at encouraging fuel economy" is not a predicate, it is a modifier, so the main verb is "require."
  2. "Having pp" is correct because the rehearsals must have preceded the "showed evidence," which is simple past.
4

@bodangles can we as well say that if we select D, the tenses aren’t consistent?

@marvin100 so whenever “having” is used GRAMMATICALLY correct, can we say the choice lacks errors?

Thanks guys! Appreciate it

5

I mean…everything’s still in present, if that’s what you meant? If you use “that” in this sentence before “require(s),” it turns the “require” clause dependent, aka it’s no longer the main verb, rendering the whole thing a fragment. It’s lacking a predicate.

My dog, which is a breed that has hip problems.
^ Your dog, etc etc, WHAT?
My dog, which is a breed that has hip problems, has been healthy so far.