-Sunday is a public holiday, children should get close to nature.
-But most of them have several lessons to attend.
A. where
B. which
C. in which
D. when
网友回答
A. where
B. which
C. in which
(答案→)D. when
解析:句意:--星期天是个公共假日,这时孩子们应该接近大自然。--但是大多数孩子有几堂课要上。先行词是a public holiday,定语从句中缺少时间状语,用when引导定语从句,选D。