51. I am very pleased to have this opportunity to... 我很高兴有机会…….
I am very pleased to have this opportunity to stand here and give you a speech.
我很高兴有机会站在这里为你们演讲.
52. I apologize for... 我为……道歉.
I apologize for leaving you alone. 很抱歉把你一个人留下.
53. I believe (that)... …我相信…….
I believe that we can conquer cancer totally some day. 我相信我们总有一天能够完全战胜癌症.
54. I believe we should... 我认为我们应该…….
I believe we should work together to protect our environment. 我认为我们应该携手保护环境.
55. I can't imagine... 我无法想像…….
I can't imagine what my life would be like if I were disabled. 
我无法想像如果我身患残疾,我的生活会怎样.
56. I can't stand it when... 我无法忍受…….
I can't stand it when people talk with their mouth full. 我无法忍受别人说话的时候满嘴食物.
57.I didn't expect to...我没想到…….
I didn't expect to receive such a pretty card from him. 我没想到能收到他寄来的那么漂亮的卡片.
58. I didn't mean to... 我不是有意…….
I didn't mean to offend you. 我不是有意要冒犯你的. [offend n.冒犯;得罪]
59. I didn't realize... 我不知道…….俄没意识到…….
I didn't realize how much this meant to you. 我没意识到这对你意义有多大.
60. I (don't) feel like... 我(不)想…….
1) I feel like going rock climbing with you this weekend. 这周末我想和你一起去攀岩

2) I really don't feel like going to the movies tonight. 我今晚真的不想去看电影.