1 . We have never doubted the success of our ________ (实验). (根据汉语提示填空)

2 . The ______(创造力) of the human race is great. （根据汉语提示单词拼写）

3 . You should always keep to the speed___________(限制) while driving. （根据汉语提示单词拼写）

4 . The threat of global warming will force the U.S. to slow down energy_________(消耗). (根据汉语提示单词拼写)

5 . This country came into e__________ (存在) in the 15th century. (根据中英文提示单词拼写)

6 . There are various o________ (选择) open to you. （根据中文提示单词拼写）

7 . IUCN, short for International Union for C___of Nature, is committed to protecting nature. (根据首字母单词拼写)

8 . The incredible d______(渴望) to think and share is the real spirit of invention. (根据中英文提示单词拼写)

9 . This store has an excellent________(名誉) for fair dealing. （根据汉语提示拼写单词）

10 . He’s going to deliver some public l______ on career planning. （根据首字母填空）