diff --git a/LearnEnglish/LearnEnglish/Models/Quiz.swift b/LearnEnglish/LearnEnglish/Models/Quiz.swift
index 0f9a530..bd8cf6a 100644
--- a/LearnEnglish/LearnEnglish/Models/Quiz.swift
+++ b/LearnEnglish/LearnEnglish/Models/Quiz.swift
@@ -70,9 +70,9 @@ enum QuizGenerator {
     private static func blankWord(_ word: String) -> String {
         let chars = Array(word)
         let letterPositions = chars.indices.filter { chars[$0].isLetter }
-        guard letterPositions.count > 2 else { return String(repeating: "_", count: chars.count) }
-        let blanks = max(1, Int(Double(letterPositions.count) * 0.4))
-        let indices = Set(letterPositions.shuffled().prefix(blanks))
+        guard !letterPositions.isEmpty else { return word }
+        let blankCount = min(letterPositions.count - 1, Int(ceil(Double(letterPositions.count) * 0.4)))
+        let indices = Set(letterPositions.shuffled().prefix(blankCount))
         return chars.enumerated().map { indices.contains($0.offset) ? "_" : String($0.element) }.joined()
     }
 }