A Busy Doctor
练习内容
Dr. Ling works in a big hospital. He is very busy every day. He is the best doctor in the city. All patients want to see him. How many patients does he see? He sees 100 patients or more each day! He w
Dr. Ling works in a big hospital. He is very busy every day. He is the best doctor in the city. All patients want to see him. How many patients does he see? He sees 100 patients or more each day! He w