In such cheerful conversation, the time ________ all too quickly.
went up
went down
went by
went back
There will be lecture (演讲) in half an hour.The meeting room with people.
Each of the studentsin the playground when the bell rang.
Do you know over there?
—What’s wrong? —I can’t find my watch.
—What’s this in the photo? —It’sUFO.I took the photo.