Question

【题目】The conference was held to discuss the effect that tourism has ______ the wildlife in the area.

A.in B. on

C.at D. with

Answer 1

【答案】B

【解析】考查介词。句意：举行会议来讨论旅游业对这个地区野生动植物的影响。使用短语have effect on sth对……有影响。故选B。