---- Olympic champion Luo Xuejuan was chosen as the first Chinese torchbearer carrying the torch in March 2008. ---- She _____ very happy.---- Yes, she said, “ To be the first Chinese torchbearer is a great honor. ”A.must have beenB.need have beenC.might beD.can be
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A解析考查推测语气,must have done意思“对过去的肯定推测”,根据意思,她肯定高兴,所以选A