21. Assailed by --- troubled by
　　22. Anticipate ---foresee/ predict/foretell
　　23. Appeal to sb ---fascinate sb/ attract sb
　　24. appeal to ---call for
　　25. arise from – originate from
　　26. Attempt to do --- want to do
　　27. At the idea of/ at the mention of/ at the sight of/ at the sound of ---think/talk/see/hear
　　29. Astonish –shock / startle /surprise
　　30. authority --- government
　　31. Available ---have free time
　　32. be addicted to – like
　　33. Be/feel obliged to do sth ---- have to do / must do
　　34. better – to make sth better
　　35. be crucial to---be important to
　　36. be confronted with – face with
　　37. Be delighted to do ---happy/glad/ pleased to do
　　38. be fond of – like
　　39. be beneficial to – be good for
　　40. be detrimental to – be harmful for