问题
选择题
The special medicine for the disease was difficult to find though ________
everywhere.
A．sought
B．having sought
C．being sought
D．having been sought
答案
答案：A
A [从句的主语和主句主语一致，medicine和seek之间是被动关系，故将从句主语与系动词省略。完整表达为．..though it was sought everywhere。]