New Words：

mad [mæd] adj.疯狂的；生气的；气愤的； 鲁莽的；神经错乱的
be mad at/with sb 对sb生气
drive sb mad 使发狂；惹…发怒

Sample Sentences：

I know you must be really mad at me.
She was mad with me for coming home late.
That loud music is going to drive me mad.
It was a mad idea to climb the mountain in this bad weather.

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