designate|designated|designates

请在表格上勾选你想要参加的课程。

Please ___designate the courses you want to attend by checking the boxes on the form.

在游戏中，他被临时指定为队长。

He was ___designated as the temporary team captain in the game.

路标清楚地标明这是自行车专用道。

The road sign ___designates this as a bike lane.