While I_______ a detective story, someone_______ at the door.
A.read, was knocking |
B.read, knocked |
C.was reading, knocked |
D.was reading, was knocking |
While I_______ a detective story, someone_______ at the door.
A.read, was knocking |
B.read, knocked |
C.was reading, knocked |
D.was reading, was knocking |