The coffee was not strong. It didn't keep us  awak...

Câu hỏi: The coffee was not strong. It didn't keep us  awake.

A. The coffee was very strong, but it couldn't keep us awake.

B. The coffee was not strong enough to keep us  awake.

C. The coffee was not good enough for us to keep awake.

D. We were kept awake although the coffee was not strong.