Read the sentences and choose since or for.

1. I've lived in Vienna ..... 3 years.

• for
• since

2. Mr Smith has been in that meeting ..... hours!

• for
• since

3. I haven't phoned home ..... Christmas.

• for
• since

4. She hasn't had a day off ..... 1999.

• for
• since

5. My neighbour's dog has been barking ..... hours.

• since
• for

6. The cake has been in the oven ..... half an hour.

• since
• for