精英家教网 > 初中英语 > 题目详情
She __________ know the answer, but I'm not sure.
A. can            B. may              C. must
B

试题分析:句意:她可能知道答案,但是我不确定。must,can(could),may(maight) 可以表示猜测,must 表示肯定猜测,用于肯定句,肯定……,一定……;can’t,表示否定猜测,肯定不……,另外can(could),may(maight),表示可能性猜测,可能……。根据but I'm not sure.可知是可能性猜测。根据句意,故选B。
练习册系列答案
相关习题

科目:初中英语 来源:不详 题型:单选题

______ more, and you’ll improve your spoken English.
A.SpeakB.SpeaksC.SpeakingD.To speak

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

—Look! The man at the gate _______be our headmaster. He is always standing there every morning.
—No, it_______ be him. He is holding a meeting in the office now.
A.must; can’tB.must; mustn’t
C.can’t; can’tD.can’t; mustn’t

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

—What will the weather be like tomorrow?
—It _______ be rainy, cloudy or sunny. Who knows?
A.mustB.might
C.shallD.should

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

— Excuse me , ______ you take a photo for us?
— Sorry, I can’t.
A.canB.need C.mustD.should

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

—Shall I help you prepare for the dinner?
—No, you ________. Everything has been ready.
A. can’t            B. mustn’t         C. needn’t

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

For the safety, everyone _________ obey the traffic rules when he is driving or walking.
A.needB.mustC.mayD.could

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

You _________ drive on when the traffic light is red.
A.can’tB.needn’t
C.mustn’tD.may not

查看答案和解析>>

科目:初中英语 来源:不详 题型:单选题

---Mum, could I go shopping with you?
--- Yes,________ . But you have to finish your homework first.
A.you canB.you couldC.you can’tD.you couldn’t

查看答案和解析>>

同步练习册答案