four boys behind one boy and are boy in the middle .how many boys?

问题描述:

four boys behind one boy and are boy in the middle .how many boys?

“四个男孩在一个男孩后面,而且一个男孩在中间,有多少个男孩?”感觉那个are应该改成a,然后如我所翻译,本人高中,英语程度初中