—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday?
—I ___________and failed to hear the phone.
A.might have slept | B.must be sleeping |
C.might be sleeping | D.must have been sleeping |
推荐套卷
—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday?
—I ___________and failed to hear the phone.
A.might have slept | B.must be sleeping |
C.might be sleeping | D.must have been sleeping |