I am not sure whether New York is ____ biggest city in____world or not.

I have not found my stowage plan yet; in fact，I am not sure（）I could have done with it.

A . whether B . what C . why D . whe

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I am not（）command.

A . on B . in C . under D . at

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He has never done this type of work before; I am not sure how he will fit（）with it.

A . in B . on C . into D . u

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I am not sure whether we can give the right advice ________emergency.

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I_____ that she is ill,but I’m not sure

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听力原文：M: Good morning, Dr. Smith. My name is Peter. I am a freshman in your department. There are a few things that I am not quite sure of and I do need your advice.

W: Thank you very much for your trust, Peter. As your academic advisor I will try my best to help you. M: Thanks. It's about my major... W: Well, what's the matter？ M: I used to major in English, but now I have made up my mind to switch to Applied Linguistics, concentrating on Teaching English as a Foreign Language. W: So you want to switch majors？ M: Yes. But I wonder if it is possible. W: Well, usually we allow it, as long as you have enough credits. M: That's good news for me. I'm not interested in literature and that sort of thing. I want to be a real teacher, Professor. But I'm worried about the make-up credits. W: You usually do have to make up some credits when you switch majors. Are you OK on credits？ M: Not too many. I'll have to add about 12 credits as far as I can. figure from my transcript. Would you please let me know how many credits are required to get a master's degree？ W: Usually thirty-six credits are needed, ff you take five courses per term, you'll have enough credits after just two semesters. Usually each course is worth three credits. To get the six remaining credits you either prepare a thesis or take two more courses. M: Is there anything else besides the 36 credits for the master's？ W: You have to have an oral defense． M: I see．I really appreciate your help，Professor． W: Glad I can help．Good luck．Peter． (23) A．A literature professor. B．An academic advisor. C．Dean of the English Department. D．A Doctor of Applied Linguistics.

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I am sure that I can ______ him into letting us stay in the hotel for the night.

A．talk B．speak C．tell D．say

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I\'m sure you（）an original signature．not a faxed copy．

A．want B．are needing C．need D．are wanting

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I was not sure whether I was______enough to lift the heavy table.

A．strongly B．strength C．strong D．strengthen

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I could not _____ from his appearance whether he was satisfied or not.

A.consider B.suppose C.gather D.assume

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听力原文：W: I hope you liked the novel I lent you. I wasn't sure whether it was the kind of book you'd be interested in.

M: I had the same doubt first, but once I started it I simply couldn't put it down. Q: What does the man mean？ (15) A．He doubts the woman will like the novel. B．He'll lend the woman the novel after he has read it. C．He enjoyed reading the novel. D．He hasn't started reading the novel yet.

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I am a new _______、I was hired yesterday.

A、employer B、employee C、employment D、fence

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He looks familiar, but I’m not sure（).

A．A.who him is B．B.who is him C．C.who is he D．D.who he is

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I am sure that we have met（)before.

A．A.sometime B．B.sometimes C．C.some time D．D.some times

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what i am ___ over is whether my kids are ready to face the challenges that await them

A．A.pondering B．B.reflecting C．C.concerning D．D.contemplating