Have you heard of _________ about Jeremy Lin (林书豪)?—Yes. He did quite well in the last NBA basketball match.

Did you find the small village yesterday? — Yes, without any difficulty, for it has ______ changed over years.

Dad, _____ we wait until the light becomes green?–Yes, we ______ . That’s the traffic rule.

Scientists are now working _ humanoids(类人生物) because they can help people alot. [ ]

Frank told us ____ funny story, but he forgot ____ ending himself.