A:You must take charge of it.
B:Wait for your punishment.
C:I’d like a refund, please.
D:I won’t agree with that.
①师生角色的差异 ②地位的不同 ③看问题的立场和角度的分歧 ④完全是老师的问题
烟草燃烧后产生的烟雾中明显有害的物质有____ 、一氧化碳、烟焦油等,吸烟对肺的健康危害极大.联合国已将每年的 ____ 定为“世界无烟日”.
If they live in Chongqing, they can go to Wuhan _____ easily.