【答案】Sophie's favourite singer ____ be Jay Chou because she has bought a lot of Jay Chow's CDs.

Sophie's favourite singer ____ be Jay Chou because she has bought a lot of Jay Chow's CDs.

A. can't B. mustn't C. must D. need

【答案】

C

【解析】

句意：苏菲最喜欢的歌手一定是周杰伦，因为她买了很多周杰伦的光盘。本题考察情态动词表示猜测之意。A. can't不可能，表示有把握的否定猜测；B. mustn' t不许，表示禁止性的语言；C. must一定，表示肯定的猜测, 有把握；D. need情态动词，需要，不表示猜测。根据she has bought a lot of Jay Chow's CDs.可知，说话者对“是周杰伦的判断”十分有把握，是肯定的猜测。故选：C。