My grandfather is 70 years old this year. He is in good condition but he lost his hearing at the age of 65. Then it became difficult for me to communicate with him. My mother bought a hearing aid   for him, but he often forgot where he had put it. So my mother advised me to communicate with him by gesture. Good idea! And then I began to use gesture. When I wanted to have an apple, firstly, I pointed to my mouth; later I made my hands form a round shape. Then he gave me an apple. When I was hungry, I pointed to my stomach. He would go into the kitchen and cook for me. When I wanted to use, the computer, I pointed to it. If he nodded , I could play computer games from 8 pm to 10 pm; if he disagreed, he always touched my head and pointed to the desk -- that meant that I should do my homework first. It was an easy way for us to communicate with each other! How long could the writer use the computer if his grandfather nodded?
2 hours. 3 hours. 8 hours. 10 hours