In questions sentences are given with blanks to be filled in with an appropriate and suitable word. Four alternatives are suggested for each question. Choose the correct alternative out of the four and blacken the appropriate rectangle in the Answer Sheet.
The subject of the sentence is 'only one' and it is singular, thus the verb that must be used is 'has'
=> Only one of the boys has not done the homework given yesterday.
=> Ans - (B)
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