I think the correct subordination conjunction to complete the sentence would be : D. whatever
Whatever he did to study for the final exam must be have been helpful; his grade improved from a B to an A. The other one seems not to make any sense
hope this helps
The correct answer is Allusion. I hope this helps.
That one's going to be dramatic irony!
In chapter 2 they are introduced to a group of weird people
In chapter 3 they are kinda introduced to a "party" of people
D is the answer hope this helps
