Complete the centences.use the correct form of the verbs.
1.if there.....(be)more cars on the road in the future,there....(be)more pollution.
2.if you....(see)Jane?..........(you)...........(give) her my message?
3.if pollution...........(increase) more plants and animals.........(die)
4.i........(not tell)you my secret if you........(not come) to mark*s party with me.
5.my parents..........(be)really angry if they...........(see)my bedroom!