Вставьте в предложения has или have. 1.My sister has/have French since she left school. 2.John has/have tennis professionally for two years. 3. I am so tired because I has/have the house all day. 4. Look at that man. He has/have there for half an hour. 5. She has/have non-stop since she got his letter. 6. They has/have since morning.