feat: examples

ex/theme-08-this-these/practice-06.md

@@ -2,18 +2,24 @@
 
 ### Exercise 16. Write this is or these are
 
+Example: one bag -> This is my bag.
+
 1. __________ my bag.
 2. __________ my books.
 3. __________ an apple.
 
 ### Exercise 17. Choose
 
+Example: apple / banana -> apple
+
 1. This / These are my shoes.
 2. This / These is a lamp.
 3. This / These are cookies.
 
 ### Exercise 18. Match
 
+Example: 1 -> b
+
 1. This is
 2. These are
 3. This is
@@ -24,12 +30,16 @@ c. my shoes.
 
 ### Exercise 19. Complete
 
+Example: ___ my book. -> This is
+
 1. __________ my blue poster.
 2. __________ my socks.
 3. __________ a red bottle.
 
 ### Exercise 20. Make a sentence
 
+Example: my / book -> My book.
+
 1. these / my / cookies  
    ____________________
 2. this / a / key  
@@ -37,6 +47,8 @@ c. my shoes.
 
 ### Exercise 21. Choose the answer
 
+Example: a) Yes, it is. b) Yes, they are. -> a)
+
 1. What is this?  
    a) This is a lamp. b) These are lamps.
 2. What are these?  
@@ -44,12 +56,16 @@ c. my shoes.
 
 ### Exercise 22. Choose
 
+Example: apple / banana -> apple
+
 1. This is / These are my coins.
 2. This is / These are a shelf.
 3. This is / These are my bottles.
 
 ### Exercise 23. Match
 
+Example: 1 -> b
+
 1. one shoe
 2. two keys
 3. three stickers
@@ -61,3 +77,6 @@ c. These are stickers.
 ### Exercise 24. Write one answer
 
 What are these? (three stickers) __________
+
+Example: What are these? -> These are books.
+