A:Is there a sign[ ]there?B:Yes,there[ ].A:Does it mean''No

A:Is there a sign[ over ]there?
B:Yes,there[ is ].
A:Does it mean''No climbing''?
B:YES,[ it ]does.

祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!