SAT grammar questions

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1

Hey guys, can someone help me with the following grammar questions?

Students in the origami class selected colorful sheets of paper, creased and folded it carefully, and thus had created fanciful animal shapes.
A. creased and folded it carefully, and thus had created
B. then creased and folded them carefully to create
C. they creased and folded it carefully to create
D. creasing and folding it carefully to create
E. creased and folded them carefully, thus they created
I don’t really understand why B is right since I thought that “then” could not be used as a conjunction?

Aloe vera is a succulent plant from whose leaves are extracted a gel that has been prized since ancient times for its medicinal properties.
A. plant from whose leaves are extracted
B. plant from whose leaves is extracted
C. plant from whose leaves they extract
D. plant, from its leaves is extracted
E. plant with leaves for extracting
I don’t know why the answer is B…shouldn’t it be “whose leaves are extracted” instead of “whose leaves is” since “leaves” is plural. Another question is shouldn’t “whose” only be used for people? Also, why is E wrong? Someone please enlighten me.
:slight_smile:

2

A,C,D are wrong because of the it. E Is wrong because is a run on.

3

Aloe Vera is singular. You extract the gel from the plant.

4
  1. "Aloe vera is a succulent plant" "from whose leaves" "are extracted a gel" -- what's the subject of "are"? What "are" extracted? The answer is "gel," which is clearly singular. In other words, "a gel is extracted from the leaves of a succulent plant called Aloe vera." It's an inverted clause, but it's a simple subject-verb error.
5

In your first question, “then” is not being used as a conjunction. The sentence is a series of three verb phrases joined by “and” before the third phrase. The adverb “then” at the start of the second phrase does not join anything; it simply identifies a relationship.

If you are thinking that “then” could be omitted, you are correct; I don’t see that it adds anything useful to the sentence.