sign

看那个路标，上面写着“学校前方”。

Look at that road ___sign. It says 'School Ahead'.

商店门口有一个“营业中”的牌子。

There is an 'Open' ___sign at the shop door.

她指了指手表，示意该离开了。

She pointed to her watch as a ___sign to leave.

老师做了个手势让全班安静。

The teacher made a ___sign for the class to be quiet.

画家忘了在这幅画上签名。

The artist forgot to ___sign the painting.