— Why does Sara know so much about Angkor Wat?—She ____ have been_英语解答

— Why does Sara know so much about Angkor Wat?
—She ____ have been there,or...
答案是may 为什么不填must?

人气：234 ℃　时间：2019-12-09 03:20:44

解答

从后面的【or】表示还有别的【途径】了解,故用may.不用must.
如没有后面的【or.】选must