Tea drinking in China, which has a quite long history with countless amazing stories, is regaining _____ (it) popularity nowadays.
its 还是 itself?
我觉得这个题填 its 或 itself 都可以。
填 its,则 its popularity 作 regain 的宾语。如:
The family never quite regained its former influence. 这个家族再也没有恢复往昔的影响力。
Mexico gained its independence from Spain in 1821. 墨西哥 1821 年从西班牙统治下贏得独立。
The government announced big tax cuts in an attempt to regain its lost popularity. 政府宣布大幅度减税,企图以此恢复失去的声望。
China is regaining its place as a world power, a status it enjoyed for 3,000 years and lost only a few centuries ago. 中国正在重新取得世界大国的地位,这个位子她已坐了3,000 年,只是几个世纪前才失去。
填 itself,则 regain 后面接的是双宾语,即 regain oneself sth。
The city regained itself a permanent place in history. 这座城市在历史上重新获得了永久的一席之地。