1. My father is interested in playing board games1. My father is interested in playing board games

2. The last time he smoked cigarettes a month ago2. The last time he smoked cigarettes a month ago

3. That apartment is the most modern3. That apartment is the most modern

4. Nam’s collection has over two hundred stamps4. Nam’s collection has over two hundred stamps

5. It takes me twenty minutes to walk to school every morning5. It takes me twenty minutes to walk to school every morning

6. It’s is difficult to lose weight