Frank was definitely not expecting anyvisitors to his room that afternoon and indeed he had just begun to snooze inthe mild afternoon sunshine ______ someone tapped lightly on the door.
A: before
B: when
C: as
D: then
A: before
B: when
C: as
D: then
举一反三
- He turned as someone tapped him ____. A: on the shoulder B: to his shoulder
- We() our dinner when a policeman came to the door. A: just had B: have just had C: just have had D: had just had
- We ________ supper when a policeman came to the door.: had had just|had just had|have just had|just have had
- When he heard the knock at the door, Frank probably thought ___________.
- The professor paused as if _____ his students to ask questions on the point he had just made. A: expect B: expecting C: expected D: to expect