问题
选择题
We could not reason out the way the robbers escaped,because we were unable to find any ________ of them.
A.chance
B.trace
C.point
D.signal
答案
答案:B
句意:我们推断不出强盗是怎么逃走的,因为我们找不到他们的任何踪迹。trace“踪迹,痕迹,迹象”,符合句意。