Use the Present Rerfect 1.My hair is tidy now.I've brushed my hair. 2.The door is open.Someone .........the door. 3.This

1. My hair is tidy now. I\'ve brushed my hair. 2. The door is open. Someone has opened the door. 3. This is Oliver\'s drawing. Look! Oliver has drawn a picture. 4. The calculator is broken. Someone has broken the calculator. 5. There is no more wine in the bottle. We have drunk all the wine. 6. The floor is clean now. I have cleaned the floor. 7. I know my telephone number. I have learnt my number by heart. 8. The guests are here now. The guests have arrived. 9. I\'m still working on the computer. I have not worked with the computer yet.