4. Write the correct article in each space if necessary.
1...... calorie is ..... unit of ..... heat.
2. ..... Snow and ..... ice are forms of ...... water.
3...... European cars are usually ..... good machines.
4. ..... Glass is made from..... sand.
5. It is..... honour to have ..... university degree. 6. It takes me hour to get to school from my house.
7. My father doesn't drink coffee, but he drinks..... tea.
8. I have..... aunt and ..... uncle in Poland.
9. The waiter brought me ..... glass of water.
10. Look out! I broke a bottle and there's..... glass on the floor.​