True friendship is like sound health, ________ the value is seldom known until it is lost.

．You didn’t perform as well as the other competitors; , you failed

Only by hard working can you _______ the goal.

The mother,as well as her two daughter,__________to the theatre withsome friends this evening.

Jenny and I ____ friends for six years. We first got to know each other at a Christmas party. But we ____ each other a couple times before that. [ ]