поставьте глаголы в скобках в будущее простом времени

I think we _____ two return tickets. ( to buy)

Kate ____ ten tomorrow. (to be)

My aunt _____ to Canada next summmer. (to go)

I ______ you in the evening. (to phone)

I'm sure our 3-day tour ________ more than 5000 roubles. (to cost)