—Are you a volunteer now?—No, but I _____. I worked for the City Sports Meeting last year.
One of the sides of the board should be painted yellow, and _______.
The picture ______ on the wall is painted by my nephew.
The result of the experiment was very good, ______ we hadn’t expected.
Please tell me the way you thought of ______ the garden.
Passengers are required to _____ seated until the plane comes to a complete stop.