(2009天津河东一模)What kind of conclusion can we      after having discussed for such a long tinte?

 The role that our army_____ in flood control is very important.

Traditionally，college students hold a graduation ceremony to encourage themselves before they________on their life journey.                              

Try not to start every sentence with “ the” . ___________ the beginning of your sentences.

He minds so much about his position in the office that he ____ any chance to be promoted.