Vă rog ajutați-ma! Imi trebuie urgentt

7)She is studying microbiology at university at the moment. - PRESENT CONTINIOUS
8)I think the sea is too dirty to swim in. - PRESENT SIMPLE
3)I dont 't understand hwy people like camping. - PRESENT SIMPLE
4) We are spending three days camping in the Mountains next week.-PRESENT CONTINIOUS
Asta e ce am făcut eu, sper să te ajute!