Sat 2015 Practice Test #1 Answer Explanations

Choice B is the best answer
because it is free of redundancies. 
Choices A, C, and D are incorrect because each of the three presents 
a redundancy: Choice A uses “repeat” and “again”; Choice C uses 
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“possibly.” 
QUESTION 22 
Choice D is the best answer
because sentence 5 describes the 
information Box seeks: “to determine just how much the soot is 
contributing to the melting of the ice sheet.” Unless sentence 4 comes 
after sentence 5, readers will not know what the phrase “this crucial 
information” in sentence 4 refers to. 
Choices A, B, and C are incorrect because each results in an illogical 
sentence progression. None of the sentences that would precede 
sentence 4 provides details that could be referred to as “this crucial 
information.” 
QUESTION 23 
Choice D is the best answer
because it is free of redundancies and 
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Choices A, B, and C are incorrect because all three contain a 
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choice A’s “soon” and choice B and C’s “promptly” all result in 
redundancies. Choices A and B are also incorrect because each uses 
an incorrect form of the verb. 
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Choice D is the best answer
because it is the only choice that 
provides a grammatically standard and coherent sentence. The 
participial phrase “Having become frustrated. . .” functions as an 
adjective modifying “I,” the writer. 
Choices A, B, and C are incorrect because each results in a dangling 
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not refer to choice A’s “no colleagues,” choice B’s “colleagues,” or 
choice C’s “ideas.” As such, all three choices yield incoherent and 
grammatically incorrect sentences. 
QUESTION 25