Awful time

"I've had an awful time," a boy told his friends. "First, I got angina pectoris, then arteriosclerosis. Just as I was recovering, I got psoriasis. They gave me hypodermics and, top it all, tonsillitis was followed by appendectomy."

"Wow!" sympathized his friends."How did you pull thought?"

"I don't know," the boy replied. "It was the toughest spelling test I've ever had."