16. Are you afraid ... spiders? A) on B) at C) of 17. It is very nice ... you to help us. Thank you very much. A) with B) about C) of 18. We waited... him till night but he didn't come. A) - B) for C) to 19. Why are you looking me? A) at B) - C) to 20. Everybody should take care... nature. A) at B) of C) about 21. I won't go there. Everybody will laugh ... me. A) at B) with C) to 22. I don't have enough money to pay the meal. A) - B) to C) for 23. Hello, can I speak ... Jane, please? A) - B) to C) of