Измените предложения используя Present Perfect 1. I am inviting them for dinner. 2He is seeing her home. 3they are drinking

 1. I am inviting them for dinner. — I have invited them for dinner. 2. He is seeing her home. — He has seen her home. 3. They are drinking tea. — They have drunk tea. 4. I am buying a present for my mother. — I have bought a present for my mother. 5. He is stopping a taxi. — He has stopped a taxi.