.The other day I was showing the boys the weekly chemistry experiment when, ________ I knew it, the mixture was bubbling over everywhere.
____ one of you breaks the law will be arrested for it.
There are a small number of police present at the meeting, possibly _____twelve.
--- You needn’t take an umbrella. It isn’t going to rain. --- Well, I don’t know. Itdo.
This project requires close teamwork.will be achieved unless we work well together.
_____ everyone here, I wish you a pleasant journey back to your country.