We won't know whether it will be successful. We won't know whether there will be good _____.

Tom’s __towards guests really makes me feel embarrassed in the party. 

Some of the traditional industries have lost their_____ with the rise of the new ones.

Tom got nothing in______ for her kindness,_____ made him very sad.

A successful scientist needs _____ if he wants to make hypothesis (假设) of how processes work and how events take place.