—It’s 86184867.
A. didn’t
B. couldn’t
C. don’t
D. can’t
典题链接
【示例1】—I’ve taken someone else’s green sweater by mistake.
—It ______ Harry’s.He always wears green.
A.has to be
B.will be
C.mustn’t be
D.could be
解析:could 在此处表示猜测,意思是“可能”。
答案:D
【示例2】—Mum,I’ve been studying English since 8 o’clock.______ I go out and play with Tom for a while?
—No,I’m afraid not.Besides,it’s raining outside now.
A.Can’t
B.Wouldn’t
C.May not
D.Won’t
解析:前一说话者意在强烈要求妈妈允许他出去玩一会。意为:It’s been so long a time,and it’s quite necessary for me to go and play.
答案:A
【示例3】—Excuse me,but I want to use your computer to type a report.
—You ______ have my computer if you don’t take care of it.
A.shan’t
B.might not
C.needn’t
D.shouldn’t
解析:后者意为如果你不爱惜电脑的话,就不允许你用。shall用于二、三人称表示允诺。如:
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