simply couldn’t understand how it _____ that you did so much work within such a short time.

final, we narrowly won the game. ______, I didn’t expect we had a chance of winning at first.

His aunt’s letters ___of those beautifuldays when they used to live together in his hometown.

Li Lei isn’t in the classroom. Where is he—He to the teacher’s office.

Tom is a warm-hearted man He is ______ willing to help others [ ]