1. People had no _________ (先前的) information to guide them in this respect.
2. Since you can’t operate the machine, why not look up the ___________(说明书)?
3. Everyone arrived late at the party for a _______(各种) of reasons.
4. Premier Wen’s speech was welcomed with a ______(突发，迸发，爆发) of applause.
5. Young people’s _________(消遣活动) should be directed into proper channels.
