The Opera House of Sydney was______designed like shells floating on the sea.
Her grandmother has taught in this school _______ she became a school teacher.
Is this the hotel ________ you stayed the first time you were here?
Please ask ________ not to skate on the thin ice.It’s very dangerous.
Jack, you’ve done your homework, ________ you?
When I got up that morning, I found ________ elephant standing by the window.