Idioms! THANKS =] 邊個答得最快又有解釋就比最佳回答佢!

Example:
At the start of the meeting the boss told a few jokes to break the ice/pace.
Ans: ice.

1. She's really funny, she can do/make impressions of all sorts of famous people.
2. He said that he would think about it, but in fact the had no plan/intention of going.
3. Debbie has itchy feet/boots, she never stays in one place for more than a year or two
before she goes travelling again.
4. I think the professor has really knocked/hit he jackpot with his latest invention.