Coroutine from other script is playing when paused(vuforia),Coroutine from other script is running

,I'm a beginner in unity and c# and i'm doing an augmented reality vuforia application, i have 2 example image targets, and each have same script and code just different variables. When a target is found a "start" and "pause" button will appear and if you click it, a 3d model and an example subtitle will appear, i'm using coroutine for subtitle and hide/show of some objects during animation, the pause function is working. My problem is if i paused it and play the other imagetarget, the coroutine from the previous imagetarget is playing even it if it's paused awhile ago, i want it to be totally paused when i'm shifting to other imagetarget. can anyone help me in this?`

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class AnimControl : MonoBehaviour {
 
     public Animator animator;
     public Transform giantModel;
     public Transform pauseButton;    
     public Transform startButton;
     public AudioSource audiosourc;
     public GameObject textBox;
     private Coroutine myGiantCoroutine;
     public static bool testHold = false;
     public static bool pausedAnim;
     // Use this for initialization
     void Start () {
         animator = giantModel.GetComponent<Animator> ();
         animator.speed = 0;
         giantModel.gameObject.SetActive (false);
         pausedAnim = true;
         Time.timeScale = 1;
         pauseButton.gameObject.SetActive (true);
     }
     public void playAnim(){
         if (pausedAnim == true) {
             pausedAnim = false;
             startButton.GetComponentInChildren<Text> ().text = "Restart";
             Button btnAnim = startButton.GetComponent<Button> ();
             btnAnim.onClick.AddListener (restartAnim);
             animator.speed = 1;
             giantModel.gameObject.SetActive (true);
             audiosourc.Play ();
             myGiantCoroutine = StartCoroutine (TheSequence ());
             Time.timeScale = 1;
             testHold = true;
         }
     }
     void restartAnim(){
         if (testHold == true) {
             Time.timeScale = 1;
             StopAllCoroutines ();
             myGiantCoroutine = StartCoroutine (TheSequence ());
             audiosourc.Stop ();
             audiosourc.Play ();
             animator.Play ("Selfish", -1, 0f);
             pauseButton.GetComponentInChildren<Text> ().text = "Pause";
             animator.speed = 1;
             Button btnAnim = pauseButton.GetComponent<Button> ();
             btnAnim.onClick.AddListener (pauseAnim);
             textBox.SetActive (true);
         }
     }
     public void pauseAnim(){
         Time.timeScale = 0;
         if (pausedAnim == false) {
             animator.speed = 0;
             pauseButton.GetComponentInChildren<Text> ().text = "Resume";
             Button btnAnim = pauseButton.GetComponent<Button> ();
             btnAnim.onClick.AddListener (resumeAnim);
             audiosourc.Pause ();
             pausedAnim = true;
             textBox.SetActive (false);
         }
     }
     void resumeAnim(){
         Time.timeScale = 1;
         if (pausedAnim == true) {
             pauseButton.GetComponentInChildren<Text> ().text = "Pause";
             animator.speed = 1;
             Button btnAnim = pauseButton.GetComponent<Button> ();
             btnAnim.onClick.AddListener (pauseAnim);
             audiosourc.Play ();
             pausedAnim = false;
             textBox.SetActive (true);
         }
     }
     private IEnumerator TheSequence(){    
         if (pausedAnim == true) {
             yield return null;
         } else {
             textBox.GetComponent<Text> ().text = "This story is about a giant who wasn't nice at all.";
             yield return new WaitForSeconds (3);
             textBox.GetComponent<Text> ().text = "";
             yield return new WaitForSeconds (3.5f);
             textBox.GetComponent<Text> ().text = "He went away to visit a friend, and didn't comeback for seven years.";
             yield return new WaitForSeconds (5);
             textBox.GetComponent<Text> ().text = "";
             yield return new WaitForSeconds (1);
             textBox.GetComponent<Text> ().text = "While he was away, children begin to play in a giant's lovely garden.";
             yield return new WaitForSeconds (4);
             textBox.GetComponent<Text> ().text = "";
 
         }
 
 
     }
 
 }