On April 14, 2010, many people dressed in black with white flowers ______ their chests observed three minutes of silence in memory of the victims in Yushu Earthquake .
Although the official didn’t mention any names, everyone knew who he _____.
Working at home, which one could hardly imagine, has been made _____ with the development of computer technology.
. Earthquakes _____ be dangerous, if you are in the wrong place.
The past year has been successful and, _____ ahead, we expect to do even better in the coming year.
Sales slow down after the Spring Festival, but we are expecting things to _____ again this coming May Day.