选1!
__Having been refused_ a us visitor visa twice ,the young man finally gave up his hope of going to America.
大意：被拒签了到美国卢星的签证两次后,那个年轻男人放弃了去美国的希望.
refuse sb sth,固定搭配,拒绝某人某事；
整个句子补充完整就是：
After he had been refused a us visitor visa twice ,the young man finally gave up his hope of going to America.