This white bike is too expensive.I can’t ______ it. Could you show me a cheaper one

湖南省怀化市2014年高三第二次模拟考试）27The retired teacher is said to have returned from the USA, where he ______ by some of his old students

Is it interesting to play computer games?—Yes, _____ you are interested in playing computer games, you’llhave trouble giving it up.

Is John doing his homework now? — He should, but he _______ not. He likes playing computer games.

When he was in high school, he made up his mind to _____ membership in the Party.