Fill in the gas with the correct future tense ( Present Simple, Present Continuous, Future simple, be going to):

1) We don’t have any milk left. - Ok, I _____________ (to go) to the shop.
2) What are your plans for the weekend? - I ______________ (to visit) my grandparents.
3) Let’s meet tonight? – Sorry, I can’t, I __________ (to see) my doctor then.
4) When your train ________(to leave)? – It _________ (to leave) at 8.30.
5) Be careful! You _______________ (to drop) the cup!