1. My friend’s dad is an engineer. - We use a/an to say what somebody’s profession is.2. I love animals. - We use no article when we talk about things in general. 3. That isn’t the problem. - We use the to talk about a specific person or thing or a previously mentioned person or thing. 4. The sun is hot today. - We use the to talk about someone or something that is unique.5. Parents can be difficult. - We use no article when we talk about things in general. 6. They’ve got a car. - We use a/an to talk about a singular, countable person or thing for the first time, or to say that the person or thing is one of a number of people or things. 7. (They’ve got a car.) The car’s blue. - We use the to talk about a specific person or thing or a previously mentioned person or thing.8. She’s the new president. - We use the to talk about a specific person or thing or a previously mentioned person or thing.