It was my sister        first had the idea to cycle along the river. 

It is not how much we do but how much love we put into what we do _____ benefits our work most.

It was on a train _____ I was travlling to Xi’an _____ I made the acquaintance of the old professor from UK.

 It is not where you graduated but ________ you have the ability to work out problems ________ counts.

It was only then ______ I began to have doubts about whether my story had ever been told.