His attitude was threatening, and I became scared.

He read the Thousand and One Nights and was drawn to the charm of the Orient.

He cut the apple.

He rejoiced when he heard about the success.

He is interested in ichthyological research.

Knock-knock, someone is knocking on the door.

Thinking sensibly, that plan will not succeed.

He has astronomical knowledge.

He fell while skiing and broke his rib.

His success was an inevitable result.