Many teens don't get enough sleep because they have too much homework to do, which ________ them up at night.

If you want to catch your flight, you’d better ____ for the airport right now. 

Many people would rather _____ eating out on holiday than give up their broadband, mobile phone and pay-TV services, according to a recent survey.

 Thanks to his open-minded parents and schoolmaster, he was lucky enough to grow up       the positive impact of sports.

The part that China _________in the international affairs _________ in the international society.