Lacking information about energy use.

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Lacking information about energy use.

by amysky_0205 » Fri Dec 07, 2012 6:58 am
Lacking information about energy use, people tend to overestimate the amount of energy used by equipment, such as lights, that are visible and must be turned on and off and underestimate that used by unobtrusive equipment, such as water heaters.
(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that
(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when
(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when
(D) visible equipment, such as lights, that must be turned on and off and underestimate that
(E) visible equipment, such as lights, that must be turned on and off and underestimate it when

OA: D

someone already posted this before, but i want to know what other choices are wrong.

thank u so much!
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by theachiever » Fri Dec 07, 2012 6:12 pm
Visible and unobtrusive are not parallel adjectives.Hence the possibility of A,B,C is eliminated.

The noun equipment needs a appropriate singular verb and hence placing visible before equipment eliminates subject verb problem and solved the parallelism problem too.

In E it when used by is not parallel to the amount used by.


Answer is D
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