They were at school (at )10:25.
解析：点钟前用介词 at
stand( in )a line ,please
they played football ( on )Friday afternoon.
Please pick ( up ) the pen on the ground ( for ) me
不明白的再问哟,请及时采纳,多谢!还有几个不会，顺便回答一下吧 (*^__^*)已经回答了，如有疑问请hi我