Fill in the blanks.
No sooner had we reached the bus stop ____ the bus left.

The correct sentence is: No sooner had we reached the bus stop than the bus left.

• কোন একটি কাজ শেষ হতে না হতেই আরেকটি কাজ ঘটে গেলে এরূপ বুঝাতে এই Conjunction যুগল হয়।
Structure: No sooner + had + Verb এর past participle+ than + rest of the sentence.

- No sooner had we reached the station than the train left.

Source: A Passage to the English Language, S.M. Zakir Hussain.