【题目】Having retired from his business, he now ________ himself with the welfare of the disabled.

【题目】The scientists showed great ______ the warming of the earth．

【题目】 The Second World War, _________ the earlier one in 1914, promoted public concern about the physical and intellectual well-being of the country’s human resources.

【题目】Arthur owed his success to his family that offered a peaceful and happy ________ for his study.

【题目】More strict measures to protect Heihe River Basin in a few years．

【题目】﹣﹣Why not go into the classroom？

【题目】I was ________ leave ________ I saw him ________ towards me with a bag in his hand.

【题目】If you've ______ those things that seem impossible，you will succeed finally．

【题目】On February 11, 2007, Drew Gilpin Faust was ________ as the first female president of Harvard University in 371 years.

【题目】The result of this study confirmed the ________ assumption made by the scientist months ago.