A good college history book includes ---about history.
A
every student knowing
B
should every student know
C
in that every student should know
D
what every student should know
Correct Answer: what every student should know
Assertive বাক্যে relative pronoun যুক্ত অংশ হিসেবে একমাত্র (d)ই সঠিক। What + sub + verb হলো correct sequence।