I didn’t know your telephone number; otherwise, I ______ you long ago

What do you think your life will be like________ twenty years—Yeah.I have thought about it________ three years.

Shanghai and Nanjing are among the most importantcities in China __________ their size and population

How can school ban mobile phones completely __________ some of the parents simply don’t follow the rule

在文中①②横线上填入下列语句，衔接最恰当的一项是 （ ）金沙江大峡谷旁有一座远近闻名的纳西古城。 ① 。是纳西人最原始的聚居地。我们步行了一个多小时，古城出现在前面。 ② ，上面镌刻者“宝山石头城”五个大字。