When peter's father died. He medicine. (study) * When peter's father died. He was studied medicine. When peter's father died. He is studying medicine. When peter's father died. He studying medicine....

Insert the word between two brackets in the right position to make correct sentences

Extracted text: When peter's father died. He medicine. (study) * When peter's father died. He was studied medicine. When peter's father died. He is studying medicine. When peter's father died. He studying medicine. When peter's father died. He was studying medicine.