單字：

big - small (大-小), tall - short (高-矮), happy - sad (快樂-悲傷), good - bad (好-壞), old - young (老-少),

pretty - ugly (漂亮-醜), dirty - clean (骯髒-乾淨), fast - slow (快-慢), weak - strong (弱-強), hot - cold (慢-冷)。

句子：

What is the antonym for night ? (It’s a day.)

What are antonyms ? (Antonyms are words with the opposite meaning.)

Can you name a pair of antonyms ? (Yes, old - young.)