1 . 既然这个老人很依赖我们，我们就试着最大限度地满足他的要求。(汉译英)

2 . 青少年的身体变化可能会导致这样的家庭关系紧张。
Teenagers’ ________ changes may ________ in such family ________.

3 . I made an apology for not being able to take part in your activity. (同义句转换换)
I ________ for not being able to take part in your activity.

4 . As you know, sales of our Snowman ice cream have ________ (成倍增长) after we gave it a new package. (根据汉语提示单词拼写）