If not translated, the English version is displayed by default

ledsun · ledsun · commit 934e8df69686 · 2019-09-12T10:38:03.000+09:00
diff --git a/problems/object-keys/solution_fr.md b/problems/object-keys/solution_fr.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_ja.md b/problems/object-keys/solution_ja.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_ko.md b/problems/object-keys/solution_ko.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_nb-no.md b/problems/object-keys/solution_nb-no.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_pt-br.md b/problems/object-keys/solution_pt-br.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_ru.md b/problems/object-keys/solution_ru.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_uk.md b/problems/object-keys/solution_uk.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_zh-cn.md b/problems/object-keys/solution_zh-cn.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
diff --git a/problems/object-keys/solution_zh-tw.md b/problems/object-keys/solution_zh-tw.md
@@ -1,5 +1,11 @@
 ---
 
-#
+# CORRECT.
+
+Good job using the Object.keys() prototype method. Remember to use it when you need to list the keys of an object.
+
+The next challenge is all about **functions**.
+
+Run `javascripting` in the console to choose the next challenge.
 
 ---
