A:whichever
B:whatever
C:however
D:whenever
学习完宋朝历史后,某同学编了一个反映宋朝社会生活的小剧本,请指出下面哪个环节符合史实( )
There are ___________ people in the shopping centre.
①﹣ m2+1 ② −83 ③ x−1 ④ 5 ⑤π