“____ I ask you a question ?”“____ you tell me the difference between the two words ? ”

I suggested to my father that we ____________ to Dalian for a holiday this summer, but the expression on his face suggested that he ___________ to it.

(2012·宁波高二检测) Zhang Lin was addicted to computer games during his last year in high school, otherwise he _______ a student of Beijing University.

He ___ be in the garden.He must be in the room.‘

 We ______ the difficulty together, but why didn’t you tell me?