The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
If you ______ at school, you ______ a college student now.
--- Sorry, do you mind if I smoke here? --- Yes, ______.
Although she had been ill for a long time, it still came as a shock when she ______ died.
--- I am so sorry to have come late for the meeting. --- It is not your fault. With ______ rush-hour traffic and ______ heavy rain, it is no wonder you were late.
______ in the street, a terrible car accident happened, resulting in three deaths.