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44. Be alert to sth 45. play a role/part in sth./doing sth 46. be worth doing sth 47. be worthy of doing sth 48. keep/lose contact with sb. 49. be second to none（首） 50. not to speak of/not to mention/let alone+名词/代词/动名词 51. delay/ mind/ admit/ avoid/ anticipate/ consider/ contemplate/ deny/ dislike/ fancy/ finish/ involve/ permit/ practice/ quit/ risk +doing 52. adapt oneself to 53. have no objection to doing sth. 54. be/get used to doing 55. confess to 56. contribute to 57. devote to 58. object to 59. be opposed to 60. resort to | 
