1 . Watching them move slowly across the green grass, I’m struck by their _______ (美). (根据汉语意思单词拼写)

2 . China has proven over the years that it is capable of inventing what is b_______to humanity, including medicines and vaccines necessary to protect people from viruses. (根据首字母单词拼写)

3 . Volunteering brings about many___________(益处) for the volunteer himself as well as to those who are being helped. (根据汉语意思单词拼写)

4 . As the world's two largest economies, the essence（本质）of economic and trade relations between the two countries should be mutually ________（有利的）and win-win. (根据汉语提示单词拼写)

5 . Continuation writing, a new type of writing ________ (有益) to students’ logical thinking, is thought well of by many educators.（根据汉语提示单词拼写）