72 McGRAW-HILL’S SAT
18.C This word answers the question how did she
react?Therefore it modifies a verb and should be in the
form of an adverb:emotionally.
(Chapter 15, Lesson 12)
19.B This phrase is part of a parallel construc-
tion:“not A but B.” The construction is parallel only
if this phrase is eliminated.
(Chapter 15, Lesson 3)
20.B This phrase is redundant.The word while
means at the same time,so the second phrase should
be eliminated.
(Chapter 15, Lesson 12)
21.B The verb have expresseddoes not agree with
its subject coalition,and should be changed to has ex-
pressed.
(Chapter 15, Lesson 1 and Lesson 2)
22.D This is an illogical comparison.A waycan-
not be compared to a hard drive.The phrase should
be the way a computer hard drive stores information.
(Chapter 15, Lesson 4)
23.D The pronoun theirdoes not agree with its an-
tecedentmuseum,and should be changed to its.
(Chapter 15, Lesson 5)
24.B This is an idiom error.The correct form of
this comparison is “prefer A to B” not “prefer A more
than B.”
(Chapter 15, Lesson 3 and Lesson 10)
25.D Since only two films are being compared, the
comparative adjective moreis required.
(Chapter 15, Lesson 4: Comparison Problems)
26.B The phrase Emma and Iis the object of the
verb includedand therefore should take the objective
case Emma and me.
(Chapter 15, Lesson 6: Pronoun Case)
27.B The past perfect tense requires the past par-
ticiple swum.
(Chapter 15, Lesson 9: Tricky Tenses)
28.E The sentence is correct as written.
29.A The participle buildingdangles in the original
sentence. It should be changed to the infinitive to
buildso that it properly modifies the verb try.
(Chapter 15, Lesson 7: Dangling and Misplaced
Participles)
30.B The modifying phrases are awkwardly placed.
Modifiers should obey the law of proximityand be
as close as possible to the words they modify.
(Chapter 15, Lesson 8)31.A The modifying phrase at the beginning is dan-
gling.Since sheis a doctor, sheshould follow the
opening phrase. (D) and (E) do not work because they
improperly imply that she was bothered by the chil-
drenrather than their treatment.You might notice that
the correct choice contains verbs in the passive voice.
Although you should minimize the use of the passive
voice, it is not always incorrect.
(Chapter 12, Lesson 10: Write Forcefully)
(Chapter 15, Lesson 7 and Lesson 8)32.E This paragraph discusses Montessori’s meth-
ods and results in the Casa dei Bambini,and so the
trivial and unrelated fact that there were fifty students
in her first classis out of place.33.A The pronoun itrefers to Montessori’s day care
center, and so this sentence should follow the one that
mentions the day care center, but precede the sen-
tence that discusses her theoriesin detail.34.D Revision (D) is the most concise and effective
of the choices.35.C Sentences 8 and 9 discuss Montessori’s phi-
losophy and its effectiveness. Sentence 8 indicates
that Montessori decided it was important to help each
child through his or her own curriculum,which is
clearly a focus on the individual child.Section 51.B 5 y− 2 = 3 y+ 7
Subtract 3y: 2 y− 2 = 7
Add 2: 2 y= 9
Divide by 2: y=4.5
(Chapter 8, Lesson 1: Solving Equations)2.D Since vertical angles are equal, a=20. Since
angles that form a straight line have a sum of 180°,
20 +b+ 34 =180. Therefore b=126. So a+b= 20 +
126 =146.
(Chapter 10, Lesson 1: Lines and Angles)3.C (2x)(3x) =(2/8)(3/2)
Simplify: 6 x^2 =6/16
Divide by 6: x^2 =1/16
Take the square root: x=1/4
(Chapter 7, Lesson 3: Fractions)