The a)price of crude oil used to be a b)great deal c)lower than now, d)wasn't it ?
Correct Answer: Option D
Solution:
এটি Past Indefinite Tense এর Active voice এর বাক্য । তাই Tag question এর নিয়ম অনুযায়ী অপশন d) এর Wasn't না হয়ে Didn't হবে ।
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