The family's mood, which had been enthusiastic...

[nehag84]

This problem is from McGraw-Hill's GMAT 2009 edition:

The family's mood, which had been enthusiastic at the beginning of the trip, sank as the temperature has risen, dramatically, but not enough for calling off the whole trip.

a) has risen, dramatically, but not enough for calling
b) has risen, but not dramatically enough to call
c) rose, but not so dramatically as to call
d) rose, but not dramatically enough to call
e) rose, but not dramatically enough for calling

OA is D.

I need help in understanding the correct usage of "...enough...". Why is option C incorrect? In a similar question in OG, it is written that the phrase "moving infrequently enough that" is not idiomatic and that the correct construction is "so x that y". Would "moving infrequently enough to" be a correct construction?

[selva.e]

Take a look @ this link for So as to idiom.

manhattan-sc-guide-has-an-incorrect-idiom-t2566.html
C - out

enough to - proper idiom

enough to
Correct Usage: The Kid was not tall enough to go on to the ride.
Incorrect Usage: The Kid was short enough not to go on the ride.
A & E Fails

B - should be simple past instead of present participle, because the temperature is not still rising.

[nehag84]

I am sorry but can someone pls elaborate what's happening...didn't quite catch the explanation... :-(

[d_taneja]

Hi Neha..

First of all usage of so..as to is
So + ADJECTIVE + as to + VERB
- "Her debts are so extreme as to threaten her company." (Correct)

This problem is from McGraw-Hill's GMAT 2009 edition:

The family's mood, which had been enthusiastic at the beginning of the trip, sank as the temperature has risen, dramatically, but not enough for calling off the whole trip.

a) has risen, dramatically, but not enough for calling
b) has risen, but not dramatically enough to call
c) rose, but not so dramatically as to call
d) rose, but not dramatically enough to call
e) rose, but not dramatically enough for calling

A: Incorrect : Tense error : Past perfact and present perfact should not be used, rather past perfact and simple past is correct usage. enoungh for is unidiomatic
B: Incorrect : Tense error as in A.
C: Incorrect usage of idiom: It should be SO [Adjective] AS TO [VERB]. But here it is SO [Adverb] AS TO
D: Correct: "enough to" is correct idiom. Correct use of tense
E: Incorrect: Unidiomatic expression "enough for"

[nehag84]

Thanks! :-)

[esledge]

Great responses, thanks!