Read the sentences and choose the correct variant.

1. Has anybody asked ____ me while I was away?

• by
• on
• for
• after

2. It didn't happen yesterday but the day ____ yesterday.

• in
• before
• at
• after

3. This contract will be confirmed ____ December.

• in
• within
• on
• at

4. ____ the end, everything was fine.

• In
• By
• On
• At

5. I lost my passport _____ the way to Madrid.

• by
• on
• during
• at

6. Some people are _____ prison for crimes they have not committed.

• for
• in
• at
• by