问题详情：
—Tom, you've got an A in the final English exam. Congratulations!
—Thanks. But I never thought the result came out so fast. The papers ________ when I left the teacher's office just now.
A．had been marked B．were still being marked
C．are still marking D．had been marking
【回答】
B
知识点：过去进行时及其被动式
题型：选择题
