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christoph
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gamjatang
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laxieqv
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nakib77
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I choose B. Because we need that to refer the amount of water .
I think when in A is redundant.
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laxieqv
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christoph
Lacking information about water use, people tend to overestimate the amount of water controlled by visible equipment, such as sinks and toilets, that must be turned on and off, and underestimate it when used by automated equipment such as fountains and irrigation devices.

(B) visible equipment, such as sinks and toilets, that must be turned on and off, and underestimate that


Uhm, yes, B is correct coz we need "that" to modify " the amount of water" and starts a noun clause of "the amount of water"

In A, "when used ...." is wrong coz "used" is not the action of "people"

B it is.
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christoph
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OA is B)
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vivek123
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'B'.

This question is 'name replacement' version of an OG question that I was reading just yesterday :lol:
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HIMALAYA
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agreed that B is best. Onlt maintains the llism and uses "that" properly.

first llism => "by visible equipment" and ... "by automated equipment"

second llism => "overstimate the amount of water controlled by......." and "underestimate that (the amount of water) used by ....".

Quote:
Lacking information about water use, people tend to overestimate the amount of water controlled by visible equipment, such as sinks and toilets, that must be turned on and off, and underestimate that used by automated equipment such as fountains and irrigation devices.
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vc019
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C,D,E - Incorrect. Changes the meaning.
Out of A,B - I vote for B.
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taquanghai
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One more B.

Agree with Himalaya's explanation. :)



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