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.