fix

ex/theme-04-fruit/practice-02.md

@@ -4,7 +4,7 @@ Source style: matching, colour clues, and tiny sentences.
 
 ### Exercise 4. Match the fruit and the colour
 
-Example: 1 -> b
+Example: banana -> yellow
 
 1. banana
 2. apple
@@ -27,7 +27,7 @@ Example: apple / banana -> apple
 
 ### Exercise 6. Make a sentence
 
-Example: my / book -> My book.
+Example: This / banana -> This is a banana.
 
 1. This / apple  
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