1. Obesity is often thought to be the _______(主要的)cause of heart disease and high blood pressure.  
2. If a woman is better _______(教育),  she will benefit her family in the future.  
3. It is the dealer’s duty to recommend products of good _______ (质量).
4. It’s better for the government to attach more importance to the _______ (最初的) inventions of all kinds.  
5. In China the largest part of the population are employed in _______ (农业).