20
7. open the brackets.
this pencil is (long) one. this book is (interesting) one.
this pencil is the longest one. this book is the most interesting one.
1. this bag is (heavy) one. 2. this book is (expensive) one. 3. this dictionary is (thick) one. 4. this pencil is (short) one. 5. this flower is (beautiful) one. 6. this bench is (high) one. 7. this room is (big) one. 8. this woman is (young) one. 9. this washing machine is (cheap) one. 10. this boy is (tall) one.
1. the heaviest
2. the most expensive
3. the thickest
4. the shortest
5. the most beautiful
6. the highest
7. the biggest
8. the youngest
9. the cheapest
10. the tallest