He started early _______he could get there before nine

We were about to go out for a walk ______ it began torain.

We often heard the saying: “Don’t _________ till tomorrow what should be done today.” So you must finish your work today.

Today’s ceremony ____ 60 years’ development ofEducation in this key high school

many young people have become rich onTaobao.com, I wonder what ________is like to run a successful on-line business.