1 . Though Tu Youyou failed many times, she would not a___________defeat. (根据首字母单词拼写)

2 . However，Tu Youyou would not a ________ (承认）defeat. （根据中英文提示填空）

3 . It is commonly________(承认，认可) that China has made progress in the industrious field. (根据汉语提示单词拼写)

4 . Lu Xun, a_______ as one of the greatest modern writers in China, was born in Zhejiang Province.（根据首字母单词拼写）