A rewward has been announced for the employees who ____ hard .
A
has worked
B
will be worked
C
have had worked
D
have worked
Correct Answer: have worked
এখানে বাক্যের Main clause টি Present Perfect tense এর Subordinate clause টি যে কোন tense এর হতে পারে। অপর দিকে Who, Employees কে represent করতেছে Employees হলো plural countable noun, সে জন্য Verb Plural হবে। Answer: Have Worked.