Gmat Sentence Correction 70, 71, 72

70). Unlike a typical automobile loan, which requires a fifteen- to twenty-percent down payment, the lease-loan buyer is not required to make an initial deposit on the new vehicle.

(A). the lease-loan buyer is not required to make

(B). with lease-loan buying there is no requirement of

(C). lease-loan buyers are not required to make

(D). for the lease-loan buyer there is no requirement of

(E). a lease-loan does not require the buyer to make

71). . In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings. which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.

(A). mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis

(B). mood swings, perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis ,

(C). between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis

(D). between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis

(E). genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease

72). Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated at 40 to 44 million years old provide evidence of a crucial step along the evolutionary path that led to human beings.

(A). at 40 to 44 million years old provide evidence of

(B). as being 40 to 44 million years old provides evidence of

(C). that it is 40 to 44 million years old provides evidence of what was

(D). to be 40 to 44 million years old provide evidence of

(E). as 40 to 44 million years old provides evidence of what was

Answers -

70). Choice E, the best answer - correctly uses a parallel construction to draw a logical comparison: Unlike a typical automobile loan,... a lease-loan....

A - incorrect - illogically compares an automobile loan, an inanimate thing, with a lease-loan buyer, a person.

C - incorrect - buyers makes the comparison inconsistent in number as well as illogical.

B, D - incorrect - are syntactically and logically flawed because each attempts to compare the noun loan and a prepositional phrase: with lease-loan buying in B and/or the lease-loan buyer in D. These choices are also imprecise and awkward.

71). The best choice is C - uses the idiomatically correct expression distinguishes between x and y and because it provides a structure in which the relative clause beginning "which may be violent" clearly modifies "mood swings".

A, B, D, E - incorrect - use distinguishes in unidiomatic constructions. Additionally, their in A is intrusive and unnecessary, and the modifier of mood swings in B and D (perhaps violent) is awkward and less clear than the more developed clause which may be violent.

72). D, the best choice - correctly follows estimated with to be. The other choices present structures that are not idiomatic when used in conjunction with estimated.

A - incorrect - unidiomatic

B, C, E - incorrect - all mismatch the singular verb "provides" with its plural subject "fragments" .Further in C and E, what was is unnecessary and wordy. In choice C, the use of the verb phrase estimated that it is produces an ungrammatical sentence.