1 . As is known to us, the People’s Republic of China came into ________ (exist) as an independent country in 1949. (所给词的适当形式填空)

3 . Pakistan came into __________ (exist) as an independent country in l947. (所给词的适当形式填空)

4 . They exist on food supplied by the organization which came into ________ (exist) decades of years ago.（所给词的适当形式填空）

5 . It is still unknown how the universe came into ______________(形成). (根据汉语提示单词拼写)

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

7 . No one knows exactly how the earth came into ________ (exist), as it happened so long ago. (所给词的适当形式填空)

8 . It is reported that this animal came into ________(exist) about 100 million years ago. (所给词的适当形式填空)

9 . 选词填空exist; existence
1. Pakistan came into ________as an independent country after the war.
2. I believe that the custom of arranged marriages doesn’t ________in our country now.

10 . No one knows when such a custom first came into________ (exist). （用所给词的正确形式填空）