Although he worked very hard, he ___

Although he worked very hard, he ____ not pass.

A will

B did

C had

D was

Correct Answer: Option B

Although দ্বারা যুক্ত একটি অংশ past indefinite tense -এ হলে অন্য অংশটি ও past indefinite tense হবে । তাই did হলো সঠিক option .