let lily ___(have )a drink of orange ,please

let lily ___(have )a drink of orange ,please
let lily ___(have )a drink of orange ,please

let lily ___(have )a drink of orange ,please
have
let sb do sth 让某人做某事

have
let后跟动词原形

填入have
let sb. do sth.

let lily have a drink of orange ,please
填原型
因为let sb do sth 让某人做某事，固定的