题目内容
【题目】Perhaps the day will come ____ people will be able to breathe clean air in cities.
A.when
B.while
C.as
D.since
【答案】A
【解析】这道题考查定语从句的用法:when引导定语从句修饰the day,因为在定语从句中缺少时间状语,所以用when。句意是:可能人们在城市里能呼吸新鲜空气的日子就快到了。
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【题目】Perhaps the day will come ____ people will be able to breathe clean air in cities.
A.when
B.while
C.as
D.since
【答案】A
【解析】这道题考查定语从句的用法:when引导定语从句修饰the day,因为在定语从句中缺少时间状语,所以用when。句意是:可能人们在城市里能呼吸新鲜空气的日子就快到了。