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joyseychow
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D sounds better then other options.

A. "the number of students have" is incorrect, as number is singular
C. since students .. have grown, changes the orignal meaning.
E. same mistake as in C

But I'm unable to understand the reasons for rejecting B...someone please explain ?
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bigoyal
D sounds better then other options.

A. "the number of students have" is incorrect, as number is singular
C. since students .. have grown, changes the orignal meaning.
E. same mistake as in C

But I'm unable to understand the reasons for rejecting B...someone please explain ?

at nearly 47 million can not be used for a number of students, it should be for the number of students. Further more B uses since and with since you need to show the difference from past to present. Therefore, you need to use have.
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bigoyal
D sounds better then other options.

A. "the number of students have" is incorrect, as number is singular
C. since students .. have grown, changes the orignal meaning.
E. same mistake as in C

But I'm unable to understand the reasons for rejecting B...someone please explain ?

at nearly 47 million can not be used for a number of students, it should be for the number of students. Further more B uses since and with since you need to show the difference from past to present. Therefore, you need to use have.



can you please explain "at nearly 47 million can not be used for a number of students, it should be for the number of students"? i didn't get that
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A. is wrong because it uses the number have grown!the number is singular always
B: has meaning issues- use of 'a number of students in schools growing' - implies that a lot of stduents are growing steadily!!
C: uses since after a colon - i.e. a subordinate clause (beginning with since) after the colon- this is wrong. colon should be follwoed by an independent clause, in this case an explanation
E:just like C this option also has 'students at 47 Million' students are not 'at 47 Million', it is their number which is. Wrong option
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D. One way to screen the choices is we are referring to Noun the Number(Singular) so it should be followed by Singular Verb(Has fits well) and only D has it.



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