Three months had passed. (Hint: How)

It was time for him to visit his hygienist. (Hint: Whom)

It was time for him to visit his hygienist. (Hint: What)

The visit usually lasted three hours. (Hint: How)

She always went through a list of questions. (Hint: What)

She took Tony's pulse. (Hint: Whose)

She was looking for abnormalities. (Hint: What)

She found a spot on the side of his tongue. (Hint: Where)

They often saw this in smokers' mouths. (Hint: Whose)

They were going to have to do a biopsy. (Hint: What)