1. It is a tough nut for him to crack.

2. He's a tough nut to crack.

3. The final exam was a tough nut.

4. It strikes me that he's right a tough nut to crack.

5. She's a tough nut to crack ; I don't think she'll give us permission.

6. Shearer, a tough nut not inclined to whinge, said his ankle was like a pudding.

7. Daytime television is a tough nut to crack. New shows have to be good enough to beat the old favorites.

8. West Ham will be a tough nut to crack especially with big Lee in good form at the moment.

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9. He is a tough nut.

10. This old man is a tough nut to crack!

11. That guy is a tough nut.

12. It's really a tough nut to crack.

13. My brother thought he was a tough nut but I saw him cry that day.

14. Love is a tough nut crack. There are always new transverse. It's a never - ending learning process.

15. He may have softened a bit in his old age but he's still a tough nut.

16. Celtic have lost only once this season and will be a tough nut to crack.

17. It is precisely the difficulty of extracting this emotionally charged content from the detached, hard-boiled sort that makes sentiment analysis such a tough nut to crack.

1. It is a tough nut for him to crack.

2. He's a tough nut to crack.