The conservation group was ______ in its opposition to the new airport.
A、rough
B、troublesome
C、tenacious
D、uninterrupted
【正确答案】：D
【题目解析】：A选项是“粗糙的；粗略的”意思；B选项是“麻烦的’讨厌的”的意思；C选项是“顽强的；坚韧的”意思；D选项是“不间断的；连续的”意思，四个选项中只有D选项放到题干当中符合题意；与in its opposition 构成“不断反对”的意思。
