Put the verbs in brackets into the future simple tense. 1) i think we return tickets. (to buy) 2) kate ten tomorrow. (to be) 3) my aunt to canada next summer.(to go) 4) you in the evening. ( to phone) 5) i"m sure our 3-day tour more than 5000 roubles.(to cost)

1) I think we shall / will buy two return tickets. (to buy)
2) Kate will be ten tomorrow. (to be)
3) My aunt will go to Canada next summer.(to go)
4) I shall / will phone you in the evening. ( to phone)
5) I'm sure our 3-day tour will cost more than 5000 roubles.(to cost)