I / have / toothache / so / I / have to / se...

Câu hỏi: I / have / toothache / so / I / have to / see / dentist.

A. I have a toothache so I have to see dentist.

B. I have toothache so I have to see dentist.

C. I have a toothache, so I have to see the dentist.

D. I have toothaches so I have to see the dentists.