“Tell me,” the teacher asked her students,

“Tell me,” the teacher asked her students, “do you know what the word ‘can’t’ is short for?” “Yes,” said little Lucy. “It’s short for ‘cannot.’”
“Very good. And what about ‘don’t’?”
Little Matt’s hand shot up. “That,” he said with authority, “is short for ‘doughnut.’”

上一个：Patient: "Doctor, doctor, what can I put
下一个：This past fall semester, at Duke University,