Question

Open the brackets using Present,Past or Future Perfect.
1.You (to come) home by 8 o'clock toning?
2.She (to take ) her child to the nursery school before she went to the dentist
3.What the dentist ( to do ) before he pulled your tooth out?
4.He ( to complain ) of bleeding gums lately
5.By the next month the dentist (to set ) new office equipment.
6.The patient already ( to learn ) how to use the floss.
7.What tooth the dentist ( to treat) successfully at last?
8.The nurse ( to lead ) the patient to the dentist's consulting room by that time.
9. The dentist's assistant ( not to check ) the drilling machine yet .
10. The dental hygienist ( to tell) you about this mouth - wash in details before you leave the office.

Answer 1

1. has come
2. had taken
3. had done
4. has complained (по заданию получается так, но я бы использовала здесь форму Past Indefinite - He complained...)
5. will have set
6. has already to learned
7. has treated
8. has led
9. has not checked
10. has told