So many unpleasant things happen at airports. a) must b) can c) should d) may

may

•our inform    wants to   protect the   environment.

•  we fight against water and air    pollute

•are you unhappy with the ecological situate  in your region?  

•send us some organise  about it and we`ll try to help. 

вопросительная: is there   a good restuarant near here?

отрицательная: there is not a good restuarantnear here.