— I rang you up last night, but nobody a
题型:选择题
问题:
— I rang you up last night, but nobody answered.
— Oh, I usually ________ off my phone at about 9:00 p.m.
A.switched
B.have switched
C.switch
D.had switched
— I rang you up last night, but nobody answered.
— Oh, I usually ________ off my phone at about 9:00 p.m.
A.switched
B.have switched
C.switch
D.had switched