Fill in the gaps with the correct forms of will, going to or the present continuous using the verbs in brackets.
1 A: Your room is a mess!
B: Sorry, I ..... (tidy) it up now.
2 A: Did you go to the post office for me? B: No, but I promise ............... (go) this afternoon.
3 A: Look at those clouds!
B: Yes, it ...... (rain).
4. A: It's Brian's birthday on Saturday.
B: I know............ (buy) him a present on Friday.
5 A: Do you want to see a movie tonight?
B: Sorry, but I............... (have) dinner with Peter tonight. ..​