根据汉语意思完成下列译文。
1. 感谢你为我们带来的好吃的东西。
Thank you for ______ ______ something nice to eat.
2. 大卫的父亲病了,他不得不照看他。
David's father was ill. He ______ ______ ______ ______ him.
3. 天在下雨,别忘了带伞。
It's raining outside. Don't ______ ______ ______ an umbrella
4. 汤姆放弃了他的工作,现在在从事一部小说的写作工作。
Tom ______ ______ his work, now he's ______ ______ a new novel.
5. 我的压力很大,因为我的英语口语未能提高。
I am ______ ______ because my English isn't _______.