Question

【题目】We are to hold the sports meeting next weekend, ________ the air quality becomes better.

A. which B. when

C. where D. while

Answer 1

【答案】B

【解析】考查定语从句。句意：我们将在下周末举行运动会，届时空气质量会更好。此处next weekend做先行词，在后面的定语从句中做时间状语，故答案为B。