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# The spraying of pesticides can be carefully planned, but

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Director
Joined: 09 Aug 2006
Posts: 755
The spraying of pesticides can be carefully planned, but [#permalink]

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23 Oct 2007, 02:56
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The spraying of pesticides can be carefully planned, but accidents, weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated.

(A) weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had
(B) weather conditions that cannot be foreseen, and pilot errors often cause much larger deposits of spray than
(C) unforeseeable weather conditions, and pilot errors are the cause of much larger deposits of spray than they had
(D) weather conditions that are not foreseeable, and pilot errors often cause much larger deposits of spray than
(E) unforeseeable weather conditions, and pilot errors often cause much larger deposits of spray than they had

This one was posted before but I still don't get the distinction b/w the final 2 choices that I narrow the answers down to. Why is B better than D? What's wrong grammatically with D?

Last edited by GK_Gmat on 23 Oct 2007, 09:29, edited 1 time in total.
Manager
Joined: 02 Aug 2007
Posts: 145

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23 Oct 2007, 07:38
"Could not" in A is past tense in a sentence that is present future tense "can be carefully planned". B. Corrects this with "cannot be" which is present tense. However, I'm sure you got this far. The real question you have is why is "cannot be foreseen" better than "are not foreseeable" ?

The first part of the sentence states "can be carefully planned" which is looking into the future. "Cannot be forseen" is parallel with this (and thus correct), while "condictions are not forseeable" is simple present tense.
Manager
Joined: 01 Oct 2007
Posts: 138
Re: SC: Spraying of Pesticides [#permalink]

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23 Oct 2007, 20:28
I have one more clue for B - the work 'anticipated' must be parallel with 'foreseen'. right?????
Re: SC: Spraying of Pesticides   [#permalink] 23 Oct 2007, 20:28
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