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# There is substantial evidence that certain forms of solar

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Intern
Joined: 20 Dec 2006
Posts: 15

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There is substantial evidence that certain forms of solar [#permalink]

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25 Dec 2006, 05:35
00:00

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(N/A)

Question Stats:

0% (00:00) correct 100% (00:49) wrong based on 3 sessions

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There is substantial evidence that certain forms of solar energy either now or within a few years will be economically competitive
with conventional sources of heat and power.

a)
b) will either be economically competitive with conventional of heat and power within a few years or are so now.

c)will be eonomically competitive with conventional sources of heat and power either now or within a few years.

d) either are now economically competitive with conventional sources of heat and power or will be so within a few years.

e) either are now or will be within a few years economically competitive with conventional sources of heat and power.

Kudos [?]: 27 [0], given: 0

Director
Joined: 28 Dec 2005
Posts: 917

Kudos [?]: 57 [0], given: 0

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25 Dec 2006, 05:52
I will go with D. Adheres with tense best. either are now....or will be so.

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Senior Manager
Joined: 04 Nov 2006
Posts: 258

Kudos [?]: 240 [0], given: 0

Location: California

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25 Dec 2006, 16:12
D looks ok...

What about C.. I think either now or within... now and within are different types ...

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VP
Joined: 14 May 2006
Posts: 1399

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25 Dec 2006, 22:55
khaos wrote:
may someone please explain why not C ?

X will be competitive NOW???

X is/are competitive now... but WILL be in y years

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Senior Manager
Joined: 19 Jul 2006
Posts: 358

Kudos [?]: 8 [0], given: 0

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26 Dec 2006, 00:32
khaos wrote:
may someone please explain why not C ?

Agree with U2..
Also Either/Or should follow a pattern :
â€¦either + noun ..or + noun..
â€¦either + verb ..or + verb..

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Manager
Joined: 03 Dec 2006
Posts: 73

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Location: London

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26 Dec 2006, 20:03
Thanks u2lover and AK, it looks obvious now.

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Manager
Joined: 21 Sep 2006
Posts: 110

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Location: Where you mind is

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19 Jan 2007, 03:35
AK wrote:
khaos wrote:
may someone please explain why not C ?

Agree with U2..
Also Either/Or should follow a pattern :
â€¦either + noun ..or + noun..
â€¦either + verb ..or + verb..

C for me.

Idiom: "either x or y". In the case of E, it is unclear what is 'x'.

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Senior Manager
Joined: 29 Nov 2006
Posts: 318

Kudos [?]: 146 [0], given: 0

Location: Orange County, CA

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22 Jan 2007, 15:00
I choose D.

I was originally leaning towards C as well but the sentence seems to say tha the forms of solar energy will be economically competitive now or in a few years. The "will be" in the sentence tells me that the forms of solar energy are not yet economically competitive.

D works for me because it states that forms of solar energy are either (a) already economically competitive or (b) will be in a few years.

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Manager
Joined: 08 Jan 2007
Posts: 66

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Location: D.C.

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22 Jan 2007, 15:18
D for me,

Thanks U2Lover for the explanation between C and D, I was stuck between the two.

Kudos [?]: 1 [0], given: 0

22 Jan 2007, 15:18
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# There is substantial evidence that certain forms of solar

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