Sure, here are the answers with explanations:

10. There has been a lot of **controversy** surrounding the government’s proposed scheme.
     A. controversy        B. consent                   C. conformity                   D. consequence
- **Explanation:** "Controversy" refers to public disagreement or debate, which fits the context of a proposed government scheme.

11. You can’t bury your head **in the sand** and hope that this problem goes away, you know.
     A. in the mud          B. in the pool          C. in the sand          D. in the water
- **Explanation:** The idiom "bury your head in the sand" means to ignore a problem or avoid facing reality.

12. Fiona’s offered to help you. Don’t ask why – never look a gift **horse** in the mouth.
     A. horse                 B. cow                   C. deer                   D. dog
- **Explanation:** The idiom "never look a gift horse in the mouth" means not to find fault with something that has been received as a gift or favor.

13. Sandra’s unpleasant **smirk** suggested that she knew about Amanda’s terrible secret.
     A. grimace              B. smirk                 C. wince                 D. snort
- **Explanation:** A "smirk" is a smug or conceited smile, which fits the context of knowing a secret.

14. Few people can do creative work unless they are in the right **frame** of mind.
     A. frame                 B. trend                  C. attitude               D. tendency
- **Explanation:** "Frame of mind" refers to a person's mental and emotional state.

15. He was arrested for trying to pass **counterfeit** notes at the bank.
     A. camouflaged      B. fake                   C. counterfeit          D. fraudulent
- **Explanation:** "Counterfeit" refers to fake money or documents made to deceive.

16. This fabric has the **texture** of silk but it’s very cheap.
     A. stroke                B. substance           C. friction               D. texture
- **Explanation:** "Texture" refers to the feel or appearance of a surface or material.

17. I threw some biscuit **crumbs** on the ground and a whole load of pigeons swooped down and started eating them.
     A. grains                B. specks                C. flakes                 D. crumbs
- **Explanation:** "Crumbs" are small pieces of food that fall off when something is broken or eaten.

18. The insects looked and tasted so horrible, I **grimaced** with disgust as I tried to force them down.
     A. gloated               B. grinned              C. grimaced            D. chuckled
- **Explanation:** "Grimaced" means to make a facial expression of disgust or pain.

19. Going down white-water rapids in a canoe must be extremely **exhilarating**! Does your heart start beating really fast?
     A. trivial                 B. mundane            C. sedentary           D. exhilarating
- **Explanation:** "Exhilarating" means very exciting and thrilling.

20. Was it always an **aspiration** of yours to play for France?
     A. urge                   B. adoration            C. anticipation        D. aspiration
- **Explanation:** "Aspiration" refers to a strong desire to achieve something.

I hope this helps!