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According to the study, personality traits may vary as much from one dog to another as from one person to another.
(A) as
(B) as it is
(C) as when they are
(D) than
(E) than they do
解释：
To remind yourself how to use a difficult phrase (in this case, “as much”), think about other, simpler, sentences that include the phrase.
Choice (A) is correct. It avoids the errors of the other options by using the idiomatic “as” to complete the phrase “as much … as.”
正确答案是A。
There are many famous quotations previously credited to “Anonymous,” researchers have discovered that they were in fact written by female authors.
(A) There are many famous quotations previously credited to “Anonymous,” researchers have discovered that they were in fact written by female authors.
(B) Many famous quotations that were in fact written by female authors were previously credited to “Anonymous” and researchers discovered this.
(C) Researchers have discovered many famous quotations that were previously credited to “Anonymous,” they were in fact written by female authors.
(D) Researchers have discovered that many famous quotations previously credited to “Anonymous” were in fact written by female authors.
(E) The discovery of many famous quotations previously credited to “Anonymous” but in fact written by female authors were made by researchers.
解释：
Remember that two independent clauses may not be joined by only a comma.
Choice (D) is correct. It avoids the comma splice error of the original by combining the two independent clauses that were improperly joined by only a comma (“There are many famous quotations previously credited to ‘Anonymous’” and “researchers have discovered that they were in fact written by female authors”) into one sentence consisting of a main clause (“Researchers have discovered”) and a dependent clause (“that many famous quotations previously credited to ‘Anonymous’ were in fact written by female authors”).
正确答案是D。
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