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).
