The matter_______ people’s health surely requires________ carefully.

 _______ an important decision more on emotion（情感）than on reason, you will regret it sooner or later.

When I entered the room I found my father _______ in the sofa and __________ in a magazine.

David got well-prepared for the university interview, for he couldn’t risk the good opportunity ________. 

 ________ by the advances in technology, many farmers have set up wind farms on their land.