语法：1.which has been significantly shocking our lifestyles.这半句是非限定性定语从句。
2. For those who work for lengthy hours, the internet offers them much convenience.
who引导的限定性定语从句
3. the items are cheaper than online
形容词比较级用法。 构成：形容词比较级+than4.Buying on reputed online stores is a go...
