---IknewshewasathomebecauseIheardherTV,butshedidn'topenthedoor.

发布时间：2020-08-06 11:57:07

---I knew she was at home because I heard her TV, but she didn't open the door.---She ______ the bell.A.must not hearB.must not have heardC.may not hearD.may not have heard

网友回答

D解析注意上下文的时态，“可能没听到”，表示一种可能性。C项应改为can/could not have heard才对。
以上问题属网友观点，不代表本站立场，仅供参考！