【题目】—I don’t really like Janes. Why did you invite him?
—Don’t worry. He come. He said he was’t certain what his plans were.
A. must not B. need not C. would not D. might not
在线课程【答案】D
【解析】考察情态动词，题干中的he wasn’t certain说明他可能不来，可能来，因此使用不完全否定，might not。