His sister swims very fast in the sea.Does his sister swim very fast in the sea?Where does his sister swim?His sister swims very fast in the sea, doesn't she?Does his sister swim very fast in the sea or in the lake?Who swims very fast in the sea?
does his sister swim fast in the sea? - yes/no questiondoes his sister swim fast or slow in the sea?- alternative questionwho does swim fast in the sea? - object questionhis sister swims fast in the sea, doesn't she?- tag questionwhere does his sister swim?- special question