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 bee indifferent (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 condemn (谴责) any attempts to break into pany networks to obtain users’ information
3. The executive (执行的) director of board assumes the responsibility of managing financial, productive and marketing affairs.
4. Our sustainable (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 participate (参与) in an advanced education.
6.Care must be taken that each task ends with a sensible state, because there is no guarantee (保证) when the next step will be carried out.
7. In this book, Adam Smith's emphasis that the invisible (无形的) hand usually leads markets to allocate resources efficiently.
8. If you have a keen appreciation (欣赏) for good art, you may have a strong interest in cultural activities or entertainment.
9. Getting the best out of digital broadcasting (广播电视) will probably mean replacing, or at least repositioning, the indoor or rooftop aerial.
10. The eruption of volcano acpanied (伴随) by an earthquake caused great damage to the living things around.
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