Phrasal verbs with BACK

source: MrSkypelessons     2016年11月16日
https://www.skype-lessons.com/phrasal...
Here is an English lesson on some of the most common phrasal verbs which contain the preposition BACK. Answer the following questions:

1) What kinds of things bring back memories of your childhood?
2) When was the last time you had to double back? Why?
3) How much did your last purchase set you back?
4) Have you ever backed your car into something?
5) If I were in a fight with several attackers, would you back me up?
6) Are you the kind of person to take back your words and own up to your mistakes?
7) How long does it take you to bounce back after a bout of flu?