are three students punished, two girls _______ .

观察下面4个选项,从中选出不同类的选项。

I didn’t know his telephone number. ________ it, I ________ then.

His father demands that he not go to any country_________ China, which is his motherland.

The population of China___ to many times what it was in 1949, and most of its population ___ farmers.