1 . The conference ________ people's understanding of issues that are ________ world peace.
这次大会旨在加深人们对世界和平相关问题的理解。

2 . ________ just 200 meters ________, John was in the ________ and his twin brother was ________.
距终点还有200米，约翰位列第四，他的弟弟处于领先地位.

3 . ________ by millions, the ending to the basketball match has ________.
有数百万人目睹了这场篮球比赛的结尾，但对此也是众说纷纭。

4 . Despite ________ something stupid ________, Alistair agrees that ________ a brother is ________.
尽管偶尔会为一些“蠢事”争吵，阿利斯泰仍然觉得有个兄弟是种优势。