Copulas
n. 系动词（如be,seem,appear等）, （命题主词与谓词间的）连系( copula的复数形式 )
🗣️ 情景例句
We have Coca, and red tea etc.
我们有可口可乐，还有红茶等。
Rear sons for help in old age; and store up grains against famine.
养儿防老。
'I am sorry,' he said.'I do not speak English.'
”很抱歉，“他说，”我不会讲英语。”