Read the following extract and choose the correct option for each gap.

I regret ... with Tom. We have been best friends since primary school. I didn't mean ... rude to him. It just happened. We were going to our PE class and stopped ... a quick word. That's when we saw Amelia, a new student. She tripped over a stone and dropped the books she was carrying. Tom made an insulting remark about her clumsiness. The girl overheard it and blushed. I urged Tom ... but he refused ... . My blood boiled and I started shouting at him.