The research showed beyond        that smoking contributes to heart disease．

Every time _______ I come across difficulties, I will turn to my parents for help.

In order to attract more customers, many supermarkets usually sell their goods at a good________ at weekends. 

—What did he say to you just now?—He told me that he would leave for Jinan        .

The rescue team made every __________ to find the missing mountain climber.