Food safety is ________ important, so the government spares no efforts to prevent food pollution.

.If what your friend comes up with surprises you，don't reject it immediately._____，imagine that it is true.

Kim Jong un , who attended the 2012 New Year’s concert on Sunday, thanked the performers and spoke      of their successful performance.

Traffic is bad, ______ in the city center during the rush hours.

Perhaps he is not quite fit for the job, but      , please let him have a try.