Answer by YourHope:
Hi! :)
Task: Select the correct subordinating conjunction to complete the sentence.
Answer: D) Whatever!
Your answer looks like this now: Whatever he did to study for the final exam must have been helpful; his grade improved from a B to an A!
Have a BEAUTIFUL day~
Answer:
Haven't I?
Explanation:
The statement has Have as auxillary verb and the statement is positive. So, while making the tag question negative form is used.