There is a problem with the engine starting.

He started the car engine.

He is my same person, always acting together.

There will be a personnel change in the department from next month.

He was reshuffled to a different department.

There is a long private road leading to my house.

No wonder he is so tired, he has been working all day.

No wonder, I understood why he is so tired.

I am always monitoring his movements.

Mr. Sudo is my best friend.