1.
1.Nick is the happiest boy that I know. 2. Steve Jobs is more famous than Stephen Wozniak. 3. Jack is the cleverest of the three brothers. 4. dirty – durtier – the durtiest 5. bad – worse – the worst. 6. difficult – more difficult - the most difficult.
2.
1. one leaf - many leaves. 2. one tooth – many teeth. 3. one photo – many photos. 4. one secretary – many secretaries.
3.
1. There is not a big tree in my yard. 2. Are there two small sport grounds in your last school? 3. There are some new buildings in my district next year. 4. Are there any trees in this street?
4.
1. We went roller-skating last Saturday. 2. Our granny bakes meat-pies every weekend. 3. We won't write an essay tomorrow. 4. Where did she celebrate her last birtday? 5. Vegetarian person doesn't eat meat.