5 Common Idioms with 'OUT'

source: AlexESLvid        2013年7月31日
quiz: http://www.engvid.com/5-common-idioms...

1. (unconscious / asleep)
--Dan is out like a light.
--I was out cold for 20 seconds.
2. (broken / not working)
--The printer has been out of commission for two days.
3. (tired / exhausted)
--He was out of gas after the first half.
4. (not possible / not permitted)
--Going on vacation this year is out of the question.
5. (not alert / uninformed)
--I didn't understand the lesson because I was out to lunch.