In question below fill the gap with the appropriate option:
Three quarters of the Physics class .... dramatically.
improve
improves
are improving
is improving
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Which is correct: " three quarters of the students has graduated" or " three quarters of the students have graduated"?
“Three quarters of the students have graduated,” is correct.
The subject is ‘students’, which is plural and takes ‘have.’
‘Three quarters of’ is a determiner and modifies ‘students’, and because it is a pre-determiner, the noun ‘students’ keeps its ‘the.’ This is true of the following sentences too.
Three quarters of the "cats" are Siamese. (‘are’, not ‘is.’)
Three quarters of the "garden" is covered with weeds. (‘is’, not ‘are.’)
Three quarters of the "army" is sick
Three quarters of the "bundles" contain straw ('contain', not contains)
The verbs accord with the subjects (in quotation above.)
Now to our question,
Three quarters of the Physics class ...... dramatically.
It should be a singular now because the Physics class is a single entity. But we cannot say: Three quarters of the Physics class 'improves' dramatically... because improvement is a gradual process, therefore 'is improving' will be the right verb to use.
"is improving", not "are improving"
Thank you

The answer is correct. Yes they are more than one in the physics class, but 'physics class' packs them together, so you treat them as a single entity.

A quarters of ..... will take a singular verb
three quarters will take a plural because of the number three... So answer is C
from invisible teacher... page 33 or 32... New edition

I think the answer is "C". This has to do more with the Physics students than their classrooms. So, three-quarter number should take plural form while three-quarter space takes singular form.



