问题
选择题
—Oxfam trailwalkers in Hong Kong have to climb________ twenty hills and mountains.
—It’s really a tough hike.
A．through
B．around
C．over
D．along
答案
答案：C
介词辨析. Through通过;around 在……周围；over超过，越过；along 沿着。句意：香港乐施会的毅行者必须翻越20座山。climb over 固定短语，表示“翻越”。故选C。