Can I use "endeavour" here? It is said the new international airport will be endeavoured to be put into operation by then end of May at the earliest. I think it's wrong for we often say" sb. endeavour to do somthing" but not somthing is endeavoured to do". But how can I express this when I am not sure who is the subject of this sentence? I mean when I use the passive form, which word should I use to mean "try to do"? Thank you.