单选题 The spring floods had washed away the bridge, we were forced to take a ______ route.

【正确答案】 D
【答案解析】(circuitous迂回的，绕行的)。句意为：春汛冲毁了那座桥，我们被迫绕着走。A．circular圆形的；B．fantastic幻想的；C．damp潮湿的。