The official language of China is Putonghua， the foreigners usually call it Mandarin.
﹣﹣﹣ Have you seen the film The Wandering Earth（流浪地球）？
﹣﹣﹣Yes．It's the best one I have ever seen．（ ）
A．thatB．whichC．whatD．it
粤公网安备 44130202000953号
