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"twice as many as" refers to people, so people can't be compare with "increase". people can only be compared with people, increase in one year can be compared with increase in another!!
Re: One more SC...number of people [#permalink]
29 Jul 2009, 23:52
The number of people flying first class on domestic flights rose sharply in 1990, doubling the increase of the previous year.
A. doubling the increase of B. doubling that of the increase in C. double as much as the increase of D. twice as many as the increase in E. twice as many as the increase of
I understand the sentence in the following way: the number of people risen sharply in 1990 doubled the increase of the previous year. we are comparing "increase", so 'doubling' seems more appropriate
Las cualidades del agua...porque el agua no olvida que su destino es el mar, y que tarde o temprano deberá llegar a él.
I FOUND THIS EXPLANATION ON MANHATTAN FORUMS POSTED BY ONE OF THE TUTORS-RON
in this case, you can't use "..., twice as many as...", because that's an appositive modifier. appositives must modify some noun that comes IMMEDIATELY before the comma, which in this case would have to be whatever figure is twice whatever other figure. since no such figure is given, you can't use this construction.
so, A, B or C
by contrast, the -ING FOLLOWED BY A COMMA modifies the entire action of the preceding clause. this is exactly what you want to happen, because the actual rising of the # of people flying first class is what "doubled the increase of...". there's no noun in there that pinpoints this concept, so you have to use a modifier that modifies the entire clause.