Răspuns:
For ex 1:
-es=tree,class,box,dress
-ies=hobby,story,city
-ves=leaf,shelf,scarf
girl hai the plural girls
such as cake=cake-cakes
ex 2:
1.already did it
2.can i phone my mother?
3.May I ask a question?
4.May I leave earlier today?
5.Can i use your red pencil?
hope i helped!