We___them because of the noise from the river then.
A: could not have heard
B: must not hear
C: need not have heard
D: may not hear
A: could not have heard
B: must not hear
C: need not have heard
D: may not hear
举一反三
- We___them because of the noise from the river then.
- They ______us because of the noise then. A: mustn’t have heard B: needn’t have heard C: couldn’t have heard D: might not heard
- Read it aloud so that I ________ you clearly. A: may hear B: will hear C: hear D: have heard
- I'll let you know as soon as I from him. A: will hear B: hear C: have heard D: heard
- We ______ the good news just now. A: are hearing B: have heard C: hear D: heard