It happened ____ the Long March.
—Doug, where is your coach, Chow?—See, he ______ by a group of journalists.
Many memories of old times were ______ by the conversation we had during the get-together.
The political situation in Libya will become even worse unless some measures ______.
The flight was put off due to the typhoon. Otherwise, we______ the beautiful scenery in Greece now.
We are living in an age ______ we treasure very much, because it sees man’s rapid development.