The U.S. president, who has announced that the U.S. will shoulder a greater responsibility across the world，_______________ this poverty-stricken country in Africa soon.
A、 will be visiting
B、 visits
C、 has visited
D、 visited
【正确答案】：A
【题目解析】：<>该题考查的是将来时的用法。本句中插入了一个who引导的非限制性定义从句，后面的句子的主句。根据主句中的soon可以判断为将来时态。四个选项中只有A可以表示将来时态。
