题目内容：

单词拼写

1.We_____（交换）addresses and promised to write to one another．

2.Don't h_____ to contact me if you need any more information．

3.For the poorest people， life was merely a matter of_____（存活）．

4.Pakistan came into e_____ as an independent country in 1947．

5._____（科学）evidence suggests that sea levels here will rise by． at least 30 centimetres by 2030．