单选题 Before the construction of the road, it was prohibitively expensive to transport any furs or fruits across the mountains.
A. determinedly B. incredibly
C. amazingly D. forbiddingly

【正确答案】 D
【答案解析】prohibitively禁止地，抑制地；determinedly断然地；incredibly不能相信地；amazingly令人惊讶地；forbiddingly禁止的。