Korean star PSY’s “Gangnam style” video,________,has set the Guinness World Record for the most “liked” video in YouTubehistory

My hair is shorter than ___________.

. People have always been_______about exactly how life on earth began.

Mr Smith __________in London for a few years before he_____to China.

The teacher called Tom to his officebecause he was caught_____in the exam.