根据括号里的中文提示用单词的适当形式填空。（每空0.5分，共5分）
1. Animals become __________ (漠不关心的) to their young as soon as their young can look after themselves, but human beings find this difficult.
2. We should __________ (谴责) any attempts to break into company networks to obtain users’ information
3. The __________ (执行的) director of board assumes the responsibility of managing financial, productive and marketing affairs.
4. Our __________ (可持续的) levels of happiness are up to our life circumstances and our everyday activities.
5. Students from all over the world take a major step along their life's journey when they __________ (参与) in an advanced education.
6.Care must be taken that each task ends with a sensible state, because there is no __________ (保证) when the next step will be carried out.
7. In this book, Adam Smith's emphasis that the ________ (无形的) hand usually leads markets to allocate resources efficiently.
8. If you have a keen __________ (欣赏) for good art, you may have a strong interest in cultural activities or entertainment.
9. Getting the best out of digital __________ (广播电视) will probably mean replacing, or at least repositioning, the indoor or rooftop aerial.
10. The eruption of volcano __________ (伴随) by an earthquake caused great damage to the living things around.