Copular
a. 连接的, 系词的
🗣️ 情景例句
What year are you?
你是哪一级的？
Is this toothpaste on sale today?
这支牙膏今天是削价出售的吗？
Were there any exciting incidents during your journey?
你们在旅行中有没有什么令人激动的事情？