The size of the generation gap seems to be spreading with ____ rapid changes in technology, in education, in transportation and in communication that are taking place all over ____ globe.
---It’s a long time since I saw my sister.--- ______her this weekend?
Mr. Smith,________of the ________speech,started to read a novel.
In 2009 many countries are going through financial crisis,________has a great effect on many walks of life.
I still remember the days___ I spent ______ with you in Beijing.
In the face of _____ failure, it is vital that we should keep up _____ good state of mind.