問題補(bǔ)充：
單選題
He knows so much about the story. He must have read the book,_____?A.mustn’t heB.doesn’t heC.hasn’t heD.didn’t he
網(wǎng)友答案：
熱心網(wǎng)友 1樓
C解析 “He must have read the book”中must 表示“一定，想必”等推測意義，而不表示“必須、禁止”等意義�！癏e must have read the book”相當(dāng)于“I’m sure he has read the book”相一致，即用hasn’t he, 而不用mustn’t he。
