Use the word combinations to complete the sentences

• out of the blue
• vaguely familiar
• moral principles
• sincere apology
• latest trends
• Cultural diversity
• sincerely hope
• reference to the document
• black humour
• hardly recognizable
• shape of a heart
• lack of recognition
• flatly denied
• certain extent

1. One day,
   [ ], she announced that she was leaving.
2. Any faces that look even
   [ ] might help us to find the criminal.
3. A lot can be achieved by a historic leader who believes in high
   [ ] and supreme virtues.
4. Please accept my
   [ ]; I really didn't mean to hurt your feelings.
5. Discover the
   [ ] from InStyle, including inspiration from celebrities and trendy outfit ideas from experts in fashion.
6. [ ] has increased, exposing kids to new tastes and experiences.
7. I
   [ ] you bring me good news.
8. The chairman made no
   [ ] that had been recently found.
9. He loved
   [ ] and sarcasm.
10. There was no tomb left with any relics, even among those old tombs throughout the countryside, which remained
    [ ] at the end of the Japanese rule.
11. The card in the
    [ ] turned out to be an invitation to the party.
12. Nearly 80% of employees give
    [ ] as one of the main reasons for leaving their jobs.
13. The politician
    [ ] ever agreeing to a ceasefire.
14. You are right to a
    [ ], but I can't say that I accept all your explanations.