1. (2021·诸暨模拟) 用方框中所给词语的适当形式填空，每词仅用一次。

across     plastic     five    ring      sale

1. （1） My mother's mobile phone loudly when I opened the door.
3. （2） The teacher told the students not to throw bags into the river.
5. （3） Yesterday I bought my mother a pair of jeans in a .
7. （4） Charlotte's mother had just given birth to another child, her .
9. （5） It's never too careful to walk the road.