Choose the suitable grammatical construction to complete each sentence.

Choose the correct option.

"Tomorrow I [take|will take|am taking] **** the 5 o'clock train to Liverpool." — "Have you already bought the ticket?" — "No, I [book|am booking|am going to book] it online tonight."

"I [will go|am going|am going to go] to the cinema with Alice on Sunday. Would you like to come?" — "No, sorry. I [finish|will finish|am going to finish] the biology project."