我国自行研制的“神舟五号”载人飞船于2003年10月15日成功发射，并环绕地球飞行590520km．将590520km四舍五入要求保留一位有效数字，则应表示为______．

根据句意及所给首字母在空格上填上相应的单词。

1. He often talks a______his family and he says he loves his wife and children very much.

2. Her aunt is a woman w______long, black hair.

3. — W______do you come here for?  — To have a meeting.

4. A turkey is m______bigger than a chicken.

5. He is not funny, and he is always very s______.