_____ when one loses freedom does one know its value.
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.
______, and we’ll arrive in Hangzhou, where we can enjoy the beauty of the West Lake.
The ______ a teacher has on children is usually greater than that of their parents.