When I was working on a Maths problem, a good idea went ______my head.

I can’t stand (忍受) the air pollution in this city any more. It is getting more terrible.—________. We’ve never had so many factories before.

.________ the absence of any further evidence the police were unable to solve the murder

We________ up by an alarm clock every morning

The novels written by Mo Yan sell best now, but years ago no one could have imagined he _____ the Nobel Prize for Literature