The government _______________ the prevention of the A/H1N1 flu at present.
问题描述:
The government _______________ the prevention of the A/H1N1 flu at present.
A. is focusing on B. is focusing toC. are focusing onD. are focusing to
答
答案:A
government 作主语,谓语动词用单数形式,focus on 表示“集中于”,是固定结构.