1 . He majored in English_________（文学）when he was in university. （根据汉语意思单词拼写）

2 . After making a series of a________, the Chinese scientists eventually found the best solution to upgrading the vaccine. (根据首字母提示拼写单词)

3 . As the saying goes, f________ is the mother of success.

4 . They advocate a simple life with an ________(强调) on hard work, family, and community. (根据汉语提示单词拼写)

5 . There is no________(线索) to the identity of the thief. （根据汉语提示单词拼写）

6 . Of course, when new technology changes the way we live, it can be a scary ________(可能性、前景). (根据汉语提示单词拼写)

7 . As a famous politician once said, attack is the best method of ________（防御). (根据汉语提示单词拼写)

8 . Time ran out before we could get down to the _______________（细节）of the plan.

9 . As we all know, Pandas are precious ________(生物). (根据汉语提示单词拼写）

10 . They have an opportunity now to really unlock the secrets of the _______________ (宇宙)．(根据汉语提示单词拼写）