VIII.

1. of -> from

2. take -> to take

3. of -> with

4. early-> late

5. happily -> happy

6. brushing -> to brush

7. careful -> carefully

8. has -> has got

IX.

1. Lan went to the dentist last week.

2. She had an appoinment with Dotor Lai at three o'clock in the afternoon.

3. Dr Lan saw two cavities in Lan's teeth.

4. Dr Lan filled the cavities in Lan's teeth.

5. Because her teeth stopped hurting.

6. Dr Lan told Lan not to forget to brush her teeth regularly because brushing our teeth was very important.

X.

1.Remember to brush your teeth every day.

2.Remember not to stay up last at night.

Ex8:

1. Of -> from

2. Take -> to take

3. Of -> with

4. Early -> late

5. Happily -> happy

6. Brushing -> to brush

7. Careful -> carefully

8. Tooth -> teeth

Ex9:

1. She  went to the dentist

2. At three o'clock in the afternnon

3. He saw  two cavities in her teeth

4. He filled the cavities in Lan's teeth

5. Because her teeth stopped hurting

6. He told Lan not to forget to brush her teeth regularly because brushing our teeth was very important

Ex10:

1. Remember to brush your teeth every day

2. Remember not to stay up late at night