He threw a boomerang and watched it come back beautifully.

Thinking sensibly, that plan will not succeed.

He has astronomical knowledge.

Knock-knock, someone is knocking on the door.

He is interested in ichthyological research.

He cut the apple.

He rejoiced when he heard about the success.

I like watching TV while eating potato chips.

The Cheshire cat is smiling broadly.

He plays a very important role as the team's middle blocker.