When the boos ___ into the office, his secretary ___, and the accountant ___ on the phones.
A.was walking – has been typing – has been talking
B.had walked – was typing – had talked
C.waked – was typing – was talking
D.had been walking – had typed – talked
A.was walking – has been typing – has been talking
B.had walked – was typing – had talked
C.waked – was typing – was talking
D.had been walking – had typed – talked
Loga
Hóa Học lớp 12
