--- How much is the ticket to Central Park?--- A one-way ticket ______ $40, and you can ______ another $20 for a round-trip.
Mr. Wu found that a number of UFOs in the sky ______ in a very short time in surprise.
―Did you see Mr. Li when you were in France? ―No, when I ______, he ______ to Canada.
Look! The reporters are covering these lively actresses’ wonderful performance_______.
While I_______ a detective story, someone_______ at the door.
The teacher didn’t leave the classroom building until the papers _________ in the end.