Q. (A)  He has read four plays/ (B)  written by Shakespeare/ (C)  by the end of his vacation./ (D)  No error 

2

Answer/सही जवाब: (2)

Explanation/विवरण: Use  ‘He will have read', in place of ‘he has read'. An action to be completed certain future point of time will be in Future Perfect Tense.