63. The scientist made an amazing discovery ……………………. accident. 64. The negative campaign did damage ……………………. our company’s

63. The scientist made an amazing discovery ……………………. accident.
64. The negative campaign did damage ……………………. our company’s reputation.
65. She’s very pleased that they were able to sell their house ……………………. a profit.
66. He came ……………………. a large sum of money when his uncle died.
67. Don’t smoke in the forest. Fires break ……………………. easily at this time of the year.
68. The city will take a long time to recover ……………………. the damage done by the earthquake.
69. We’re going to have to concentrate ……………. improving customer service from my point of view.
70. He dedicated this music video …………. the audience for understanding about his compositions.