He accepted my proposal and started the project.

I take classes every day.

My father is a doctor.

The doctor diagnosed his illness.

The doctor diagnosed my symptoms.

Don't take his joke seriously.

He was known as a quack doctor in that town.

I am planning to have a physical examination next week.

Even though he is a doctor, he doesn't take care of his own health. It's truly a case of 'physician, heal thyself'.

In order to maintain health, it is important to adhere to the saying, 'Eat moderately to avoid the doctor.'