---Listen!---I ____ but I ____ anything unusual!A.listened;haven't B.have listened:didn't hear

问题描述:

---Listen!---I ____ but I ____ anything unusual!A.listened;haven't B.have listened:didn't hear

选B.
listen 表示听的动作,而hear表示听的内容.所有listen 译为“听,在听”,
而hear 译为“听到,听着”.