Complete these sentences. Use ‘a’, ‘an’, 'the' or no article.
1. When did you decide you wanted to be ____ engineer? Were you very young?
2. My friend is afraid of ___ spiders.
3. Unfortunately he failed the exam. ___ questions were too difficult.
4. She always buys ___ dark blue jeans.
5. I want to buy a soft drink. Can you lend me ___ euro?
6. Would you like to go out tonight? – I have no time, so ___ answer is “No”.
7. Mr Jones will be here soon. Can I get you ____ cup of tea while you wait?
8. What is ____ area of an equilateral triangle?
9. Newton's laws of motion are three physical laws that, together, laid ___ foundation for classical mechanics.
10. Is it true that equal volumes of all gaseous substances contain, at the same temperature and pressure, the same number of ____ molecules.