diff --git a/flow-control.js b/flow-control.js
index 1e28c3aa0e..ed313c00c4 100755
--- a/flow-control.js
+++ b/flow-control.js
@@ -1,19 +1,48 @@
 function basicTeenager(age) {
-
+  if (age>=13&&age<=19) {
+    return "You are a teenager!"
+  }
 }
 
 function teenager(age) {
-
+  if (age>=13&&age<=19) {
+    return "You are a teenager!"
+  } else {
+    return "You are not a teenager"
+  }
 }
 
 function ageChecker(age) {
-
+  if (age>=13&&age<=19) {
+    return "You are a teenager!"
+  } else if (age<=12){
+    return "You are a kid"
+  } else if (age>19) {
+    return "You are a grownup"
+  }
 }
 
 function ternaryTeenager(age) {
-
+  return age>=13&&age<=19?"You are a teenager":"You are not a teenager"
 }
 
 function switchAge(age) {
-
+  switch (age) {
+    case 13: return "You are a teenager";
+      break;
+    case 14: return "You are a teenager";
+    break;
+    case 15: return "You are a teenager";
+    break;
+    case 16: return "You are a teenager";
+    break;
+    case 17: return "You are a teenager";
+    break;
+    case 18: return "You are a teenager";
+    break;
+    case 19: return "You are a teenager";
+    break;
+    default: return "You have an age";
+
+  }
 }