getgyan wrote:
A group of students in an Indian village has been selected for testing a new low-cost electronic notepad being built around a new class of green, power-stingy microchips that use a fraction of the electricity of current computer chips
A. has been selected for testing a new low-cost electronic notepad being built around a new class of green, power-stingy microchips that use a fraction of the electricity of current computer chips
B. have been selected to test a new low-cost electronic notepad being built around a new class of green, power-stingy microchips that use a fraction of the electricity used by current computer chips
C. has been selected to test a new low-cost electronic notepad to be built on a new class of green microchips, which are also power-stingy and which use a fraction of the electricity used by current computer chips
D. have been selected for testing a new low-cost electronic notepad being built around a new class of green, power-stingy microchips that use a fraction of the electricity of current computer chips
E. has been selected to test a new low-cost electronic notepad being built around a new class of green, power-stingy microchips that use a fraction of the electricity used by current computer chips
This is a subject verb agreement problem again. The subject here is "group"... "of students" is just a description of the group. Whenever you see an "of", just check if it is meant to confuse the subject. Thus to agree with singular subject "group", must be a singular verb "has".
eliminate (B) and (D) for the use of "have" instead of "has".
Now start reading A, C and E in parallel.
"has been selected" is correct in all three. Then (A) says "for testing". It should be "for testing of" or simply "to test". Thus accept C and E and reject A.
C - "notepad to be built on"..."which are also power stingy".
E - "notepad being built around" ... "green, power stingy".
E is more crisp and C is unnecessarily wordy. "which are also" is not required when comma separated characteristics can be mentioned.
Thus E is the correct option.
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54% (02:01) correct
