基本句子结构：常见系动词有： be， seem， appear， look， remain， sound， feel， smell， taste， become， grow， turn， go， prove， etc.1. _____________________ is one of mans greatest ___________________.
是人类最大的。2. ____________________________ of the Internet is an appropriate ________________ of the government.
对互联网的是政府的。3. The legalization of marijuana ____________________________ in our community.
大麻合法化在我们社区。4. The greatest contribution of ____________ is the healthy attitude to life it encourages.
的最大优点是它所提倡的健康的人生态度。5. One merit of the Internet is ___________________ the latest information.
互联网的好处是能最新的资讯。
答案：
1. Biodiversity， assets
2. Legislative regulation， function
3. has become a hot-button issue
4. coeducation
5. easy access to