Xiaowen was born without the ability to walk, and therefore she had to use a wheelchair to __________.
The Japanese government stubbornly claimed the ownership of DiaoYu Islands belonging to China,___greatly hurt the friendship between the two peoples
Helen was much kinder to her youngest son than to the others,___,of course,made the others envy him
At the beginning of the twentieth century,___the population all over the world?
Most environmental problem exist because___measures for preventing them were not taken in the past
He talked happily about the men and the books___interested him greatly in the school