Answer : Whatever
"Whatever he did to
study for the final exam must have been helpful; his grade improved from a B to
an A." The correct subordinating conjunction used is "whatever".
A subordinating conjunction is used to connect a subordinate clause to a main
clause and create a complete thought within the statement. The subordinating conjunction “whatever” is
being used in the statement to show “ a student’s great effort to study no
matter what for the coming exams”.
