Complete the sentences by putting the verb in brackets into the Past Simple or Present Perfect Tense, Present Perfect Continuous
1. This man... (to paint) pictures since he was a young man. He already... (to paint) twenty pictures.
2. Jane... (to help) her mother for two hours. They already... (to wash) the floor and... (to dust) the furniture.
3. Bill... (to run) for ten minutes. ​