【题目】Was it on Saturday morning when it snowed heavily in Beijing we gathered at the gate of the university to go to the Great Wall by bus?
A. that B. which
C. where D. when
在线课程【答案】A
【解析】考查强调句型。句意为：我们聚集在大学校门口乘车去长城的那天，是不是北京那个下大雪的星期六早晨？这是个强调句型，Saturday morning后面紧跟一个定语从句when it snowed heavily。根据句意可知选A。