airman, together with the olderleaders, stood on the Tian’anmen Tower , _________ the parades _________along theChang’an Avenue

. Some of the scientists held the point ______ the book said was right.

What about the picture over there—It _______ nice.

please don’t forget _______ the window when youleave.–OK.

They reached the top of the mountain and stopped on a big rock.