Chia Bị động hiện tại hoàn thành

Chia Bị động hiện tại hoàn thành
1. Has the surgeon performed the operation?
2. Has Lionel signed the contract?
3. Our salesmen have sold all the carpets.
4. The zookeepers have captured the lion in the forest.
5. Dr. Phillips have treated all the patients.
6. Have the customers paid you?
7. Everybody has approved Joana's suggestion.
8. Kerrie has paid the bill. -
9. The bill has been paid by Kerrie.