根据首字母或汉语提示完成句子。

1. There is a saying that a dog who b           _ doesn't bite.

2. There is strange s_            in your bedroom.

3. The boy cut one of his f_           when he cut apples into pieces.

4. Some children often throw some               (石头) at the old man.

5. The great man has traveled across the         _   (海洋) and got his motherland.