Choose the correct sentence, 1 or 2, in each mini-dialogue.
a) A:  Can you come dancing tomorrow night?
B: 1) Sorry, I'll play basketball.
     2) Sorry, I’m playing basketball.
b) A: What are your plans for the summer?
B: 1) I'll spend a month in the mountains.
     2) I'm going to spend a month in the mountains.
c) A: What do you think about the weather?
     B: 1) It'll probably rain tomorrow.
     2) It's raining tomorrow.
d) A: What about tomorrow at about 5.30.?
     B: 1) OK, I'll see you then.
     2) OK, I'm seeing you then.
e) A: Mary is buying a dog next week.
   B: 1) Really? What is she going to call it?
       2) Really ? What is she calling it ?
f)  A: It would be nice to see you next week.
     B: 1) Are you doing anything on Wednesday ?
         2) Will you do anything on Wednesday?