A lot of people visit a dentist only when____________. A. they have well brushed teeth

A lot of people visit a dentist only when____________.

A. they have well brushed teeth          

B. they begin to have toothache          

C. they have holes in their teeth

D. their teeth grow properly

Trả lời

3. Dẫn chứng “Unfortunately, many people wait until they have toothache before they see a dentist.”

Chọn B