Mars Base 1 Camp was built in Jinchang， Gansu， to let young people experience for____．（ ）
A．itB．themC．itselfD．themselves
Mars Base 1 Camp was built in Jinchang， Gansu， to let young people experience for____．（ ）
A．itB．themC．itselfD．themselves
试题篮
()
粤公网安备 44130202000953号
