该图为汉画像石“讲经图”，图片中的“经”应是：
A．《佛经》
B．《圣经》
C．《五经》
D．《道德经》
答案：C
He got up late and hurried to his office, ________ the breakfast untouched.
A．left
B．leaving
C．to leave
D．leave
We were going out for a Christmas meal together ______ the accident happened.
A．unless
B．until
C．while
D．when
