1 . Dad dare not try it even after many years of ________ (marry) to my mother. (所给词的适当形式填空)

3 . First of all, there’s the ______: If you see or read something that makes you feel uncomfortable, leave the site immediately. (根据课文内容填空)

4 . 【课本改编题】
The antelope population has … and in June 2015, the Tibetan antelope ______. The government, however, does not intend to stop the protection programmes, since ______ the Tibetan antelope have not yet disappeared. (根据句意完成句子)

5 . When the project ended in 1980, it______. Not only had the countries found a path to the future that did not run over the relics of the past, but they had also learnt that it was possible for countries to work together to build a better tomorrow. (根据课文内容填空)

6 . 【课本改编题】
Economic development is necessary if we want to improve society.... and it is not possible to preserve everything from our past as we move towards the future. Finding and keeping the right ______ and the protection of cultural sites can be a big challenge. （根据课文内容填空）

9 . The authorities took effective m______ to reduce crimes, which benefited residents greatly. (根据首字母单词拼写)

10 . The primary f______ of a house is to provide warmth and shelter but not to earn a profit. (根据首字母单词拼写)