Where was ­­­____you met with the famous scientist?

Two professors at Harvard University published a study of 3,300 new graduates, looking at ______ their names had any bearing on their academic performance.

 Find ways to praise your children often，________ you'll find they will open their hearts to you.(2011·山东)

China is developing fast. That's ________ I think those of my colleagues who deal with China affairs should visit China.

  _____ he stayed in England , he visited some of his friends.