Writing: For this part, you are supposed to write an e-mail in about 100 - 120 words based on the following situation. Remember to write it clearly. 你(Li Yuan)下周一因为要去参加演讲比赛,不能上外教(Prof.Smith)的写作课。请给他写一封e-mail,内容包括:·请假并表示歉意;·解释不能上课的原因,如比赛的重要性;·承诺会自学所缺内容并按时交作业;·祝他偷快。
If John had entered the office ten minutes ago, he____ what we were talking about just now.
A、should know
B、had known
C、would know
D、would have known
Which of the following is closest in meaning to “sitting on the sidelines” in Para. 3?