单选题
During the drill, when people hear the bell, they______.
A、
should take any route to go down
B、
should not go down by stairs
C、
should take the lifts
D、
should go down by stairs only
【正确答案】
D
【答案解析】
[解析]从文章第二句：When the bell rings，you all go very quickly，in a orderly way，down the stairs_the stairs，not in the lifts．得知。故本题答案为D。
提交答案
关闭