Helen was 7 years old. One day one of her teeth began to hurt. She (16) in class at school, and her teacher (17) kindly, "What’s the matter, Helen"
"One of my teeth hurts." answered Helen.
"Tell your mother about (18) ," said the teacher, "and then go to see the dentist (牙医)."
That afternoon Helen’s mother (19) her to the dentist’s. The dentist looked at the (20) which hurt and then said to Helen, "It’s very (21) . I’m going to pull it (22) , and then you’re going to get a new tooth. It will be as nice as (23) next year." Then he did it with no trouble.
The next day Helen’s teacher asked her about the tooth, "Does it (24) hurt, Helen"
"I don’t know. You’d better ask the dentist," Helen said.
"Why" the teacher asked.
"Because the dentist has (25) it." Helen answered.