Choose the right option to fill in the gap in the following sentence-- 'He ---abroad for ten years before be settled down in Bangladesh.'
A
has worked
B
had worked
C
worked
D
would work
Correct Answer: had worked
Past pertect tense অনুসারে sentence টি গঠন করা হয়েছে। সে অনুসারে (b) option টি সঠিক ।