题目内容
(请给出正确答案)
[单选题]
Mr.Smith _______be in the office now.I saw him take a taxi just a moment ago.
A.can’t
B.doesn’t
C.mustn’t
D.needn’t
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A.can’t
B.doesn’t
C.mustn’t
D.needn’t
A.错误
B.正确
A.i₁+i₂+i₃+i₄+i₅=0
B.i₁-i₂+i₃-i₄+i₅=0
C.-i₁+i₂-i₃+i₄-i₅=0
D.i₂+i₄=i₁+i₃+i₅
A.I had
B.If had I
C.Had I
D.If I have
A. about that I was telling you
B.about which I was telling you
C.where I was telling you
D.that I was telling you
A.me to enter for
B.I enter for
C.I would enter for
D.I entered for
B.No, I don’t.
C.No, I’ve never been there.
D.Certainly, I went there.