Question

—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

Answer 1

C

介詞辨析. Through通過;around 在……周圍；over超過，越過；along 沿著。句意：香港樂施會的毅行者必須翻越20座山。climb over 固定短語，表示“翻越”。故選C。