Sean's strong love for his country is ______ in his recently published poems.

He ____ the explosion, but no one else did. How lucky he was!

To keep healthy, Professor Johnson ______ cycling as a regular form of exercise after he retired.

— Do you often visit your grandparents?　— Mmm… ________ , I’m afraid. I usually phone them.

_______ of taking a bribe(贿赂), the official was being investigated.