write in present perfect. 1.the dentist is treating teeth. 2.the hairdresser will cut my hair. 3.the actor has his ups

1. The dentist has treated the teeth.2. The hairdresser has cut my hair.3. The actor has had his ups and downs.4. As far as I can see the clown has stood upside down.5. It has thundered.6. The shower has started.7. As far as I can judge the teacher has been strict.