Official Solution:Studies on thoroughbred racing displayed that if show-horses rest adequately between competitions and raced on synthetic surfaces, they will be less likely to sustain an injury or illness than do those exhausted from rigorous training schedules.A. raced on synthetic surfaces, they will be less likely to sustain an injury or illness than do
B. raced on synthetic surfaces, they are less likely to sustain an injury or illness than
C. race on synthetic surfaces, they sustained fewer injuries or illnesses than do
D. race on synthetic surfaces, they have been less likely to sustain an injury or illness than do
E. race on synthetic surfaces, they are less likely to sustain an injury or illness than
The original contains an error in verb tense consistency.
(1) The study's results are about two conditions related to show-horses; one of these conditions,
rest, is not underlined and is in the present tense. There is no indication of a shift in verb tense, and the other condition,
raced.., should also be in the present tense.
(2) In the study, show-horses that
rest and race are compared with another group of show-horse,
those exhausted... This comparison should also be in the present tense.
Choice
E expresses all actions in the present tense.
If horses rest and race expresses that both conditions are in the present tense. These horses
are less likely...than (are) those... is also in the present tense; because it is repeated in exactly the same form when applied to both items in the comparison, the verb
are can be omitted before the
those. Choice B retains
raced.
Choice C incorrectly uses the past tense
sustained.
Choice D uses the present perfect
have been.
Answer: E
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