Exercise 3. Fill in each blank with the correct word from the box. Add a, an before these
nouns in case of necessary.

blood key decision letter question music
electricity accident sugar coat biscuit moment

1. Our lives would be very difficult without _____________
2. I didn't phone them. I wrote _____________ instead.
3. The heart pumps _____________ through the body.
4. Excuse me, but can I ask you_____________ ?
5. I'm not ready yet. Can you wait _____________ please?
6. We can't delay much longer. We have to make _____________ soon.