一般过去时与过去进行时的区分 — 英语选择题
题目
Last night, Tom ___ a comedy novel in his room from 8:00 to 9:30. At exactly 8:40, his roommate knocked at the door, but Tom didn't hear it because he ___ too hard at that moment. A. read; laughed B. was reading; was laughing C. read; was laughing D. was reading; laughed