_____you take an active part in physical activity _____be able to keep fit and stay healthy.

It’s careless _____ him to make the same mistakeagain. I think it important ______ everyone to be careful in everything.

Jack, what about the lecture— It is the most inspiring lecture that I _________ since I came to this university.

Good afternoon, Mr Li.—-_______________

Is this the reason ______ at the meeting for his carelessnessin his work