Ⅰ.在空格处填入语法形式正确的情态动词。
1．The new law states that people mustn't drive after drinking alcohol.
解析：mustn't不许，禁止。句意：新法律声明禁止人们酒后开车。
2．—I don't really like James.Why did you invite him?
—Don't worry.He might/may not come.He said he wasn't certain what his plans were.
解析：句意：——我真不喜欢詹姆斯，你为什么邀请他？——不要担心，他有可能不来，他说过他对他的计划不确定。might/may“可能”，可能性较小。
3．If you must smoke，please go outside.
解析：此处must表示“偏偏，非要”。句意：如果你非要吸烟，请到外面去。
4．—No one can be compared with Yao Ming in playing basketball.
—Oh，you are really his big fan.
解析：can表示能力，意为“能够；会”。句意：——在打篮球方面没有人能够跟姚明相比。——哦，你真是他的超级粉丝。
