Use the right forms to complete the sentences.

1. Tom is at the seaside. He has been there since morning. He has been drawing for several hours already. 2. Bob is a computer programmer. He has been a programmer for 5 years. He has been working in this company all this time. 3. Helen is at the airport. She has been there for 40 minutes. She has been waiting for her plane for half an hour. 4. My father is at home. He has been at home since 5 p.m. and all this time he has been watching a football match on TV.