----I’ve finished cleaning all the furniture in the room. ----I don’t think so. What about ____ on the balcony?
—Are you worried about her safety? —Just_______. She isn’t alone.
Could I speak to_______is in charge of International Sales please?
A modern city has been set up in_______was wasteland ten years ago.
It has been a long time for human to make _____ to reach the moon.
—Hi, Tom. Any idea where Jane is? —She_______in the classroom. I saw her there just now.