根据中文提示写出单词,完成句子,每空一词。__________, (不幸的是)we didn’t catch the school bus and had to walk to school.
Whatever your _________(选择) is, I will just follow you.
The books should be returned no _________ (迟) than next Friday.
He’d like to buy a present for his grandpa’s ___________(99) birthday.
Please be careful with these _________ (小刀). They are very sharp.