diff --git a/LearnEnglish/LearnEnglish/Views/SpellingInputView.swift b/LearnEnglish/LearnEnglish/Views/SpellingInputView.swift
index 10d76e0..5821f74 100644
--- a/LearnEnglish/LearnEnglish/Views/SpellingInputView.swift
+++ b/LearnEnglish/LearnEnglish/Views/SpellingInputView.swift
@@ -141,7 +141,7 @@ final class SpellingInputView: UIView, UITextFieldDelegate {
             let box = makeBox(fontSize: fontSize)
             box.tag = index
             if ch != "_", let label = box.viewWithTag(100) as? UILabel {
-                label.text = ch.uppercased()
+                label.text = ch
                 label.isHidden = false
             }
             box.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(boxTapped(_:))))
@@ -199,7 +199,7 @@ final class SpellingInputView: UIView, UITextFieldDelegate {
             }
             let label = box.viewWithTag(100) as? UILabel
             let filled = filledBlanks[blankIndex]
-            label?.text = filled.uppercased()
+            label?.text = filled
             label?.isHidden = filled.isEmpty
 
             let isCurrent = inputEnabled && blankIndex == cursorIndex