Mother went shopping; ______, I cleaned the house.

_____ he graduated from college, he became a success in business. 

She broke my bicycle lamp_______; that was why Jane was to blame.

I’m afraid we can’t come, but thanks for the invitation_________.

 Zhengnengliang, or positive energy, _______a term used in the book Positive Energy by Richard Wiseman, has developed into a popular phrase in Chinese society where people approach life with optimism and confidence.