英语问题（帮忙填个词,然后说明一下,
1.Walt Whitman is one of the world's most famous poets.What is special about his writing is that he usually doesn't rhyme,yet he can s_____ make a poem sound just as well.
2.Leaves of Grass is actually a poem is progress,with each representing a unique period in the poet's life as w_____ as his country.
3.O_____ 2,00 years later in 1600 ,English scientist ……
4.It bacame possible to produce a lot of electric at l_____;
5.I_____ this way,he can take into d____ vitamins.
第三题的第一个数字是2，000。
6.A beautiful and very s_____ actress was the star of a new musical show.