I hate _______ when young people speak to the elderly in a rude way. 

It’s too late. I can’t make _____ possible to get to the airport on time.

 In that case, there is nothing you can do _______ than wait. 

—Did you enjoy your tour around Beijing， Mr Singh？ —Yes. But I hate 　　　　 when the tour guide held out his left hand to shake hands with me. 

 I would appreciate _____ very much if you could give me some suggestions.