Mr Clark worked in an office. He had a lot of work to do every day. But then he began to (1) things and this made his work very (2) . One day Mr Clark said to himself, "I (3) go to see Dr Martin about this." He (4) at least two hours in the doctor’s waiting-room because there were (5) people who also wanted to see the doctor. (6) the nurse said to him, "You can come in and see Doctor Martin now." "What can I do for you" "Oh doctor," said Mr Clark. "There is something wrong with my (7) .I can’t remember (8) . I have no way to keep things for (9) than half a minute. And it’s making me work very hard. What can I do Can you help me" "When did it start, Mr Clark" The doctor asked. "When did (10) start" Mr Clark asked.