_____ carefully, or you won't be able to
问题:
_____ carefully, or you won't be able to _____ anything. [ ]
A. Hear; listen
B. Listen; hear
C. Listen; listen
D. Hear; hear
_____ carefully, or you won't be able to _____ anything. [ ]
A. Hear; listen
B. Listen; hear
C. Listen; listen
D. Hear; hear