单选题
1.[2008.10]Johnson was _______ unknown before running for the presidency.
A.visibly
B.visually
C.vertically
D.virtually
正确答案:D
答案解析:本题考查(形近的)副词词义区分。译文:事实上,约翰逊在参选总统职位之前是个无名人士。A显然,明显地;B外表上,直观地;C垂直地,直立地;D实际上,事实上。