1. I ………………………………………………………………….………… since morning. (study) 2. Sam ……………………………………….…………………. since yesterday. He is sick. (not eat) 3. They …………………………………………………….. for a long time. Call them in now. (play) 4. My friends …………………....………. me to attend the party since yesterday. I have to go. (ask) 5. My father ……………………………..……….. for the past two days. He has to rest now. (work) 6. She is tired. She …………………………………………………………….. since morning. (cook) 7. …………………….……….. you …………………………….…………? Your eyes are red. (cry) 8. John ……………………………………his medicines regularly. He is out of the critical stage of his illness. (take) 9. These children ………………………………….. since morning. Please give them a break. (study) 10. ……………….. Lily ………………………… to her friend for the past two hours? Amazing! (talk)