根据下列句子所给单词的汉语揭示，在横线上写出该单词的正确形式。

66. Big cities have many               (娱乐项目) and you can enjoy some of them in your spare time,

67. Mr. Smith is a                      (幽默) person, because he has a born ability to make people laugh.

68. As soon as she got off the plane, she               (联系) me by cell phone.

69. Jim looked into her eyes and said                  (轻柔地) “ I love you”

70. Many young people are                    (痴迷) about Yao Ming, a basketball player.

71. Let’s               (分成) ourselves into several groups.

72.                   (很幸运), a kind farmer passed by and sent him to hospital in time.

73. He is much respected as a very                       (有进取心的) and competitive leader.

74. She is a                  (毕业) of Oxford.

75. You                    (误解) my words.

一只光滑的碗水平放置，其内放一质量为m的小球，开始小球相对于碗静止在碗底，如图所示，则下列哪些情况能使碗对小秋的支持力大于小球的重力（　　）

A．碗竖直向上加速运动

B．碗竖直向下减速运动

C．当碗突然水平加速时

D．当碗水平匀速运动转为突然静止时