What is wrong with my script?

I have updated the script to

 using UnityEngine;
 using UnityEngine.UI;
 
 public class tick_1_script : $$anonymous$$onoBehaviour {
 
     public RawImage tick;
     public GameObject bottle
 
 }
     void Start () 
     
     {
     if (bottle.active = true)
     tick.SetActive(false)
     }
 
     void Update () 
     
     {
         bottle.active = false
         tick.SetActive(true)
 
 
     }
 
 }

but now it is just giving me a bunch of parsing errors:

1. unexpected symbol '}' in class struct or interface member declaration

2. unxpected symbol '}'

3. and parsing error

If you could tell me why this is that would be awesome, Thanks!