a)Look! She is going to have a baby.
b) If he wins the match, he will be very happy.
c) The sky is full of dark clouds, it is going to rain heavily.
d) The next time we see him, we will congratulate him.
e) We will go to the beach as soon as we arrive.
f) I promise that I will call you when I arrive in London.
g) Watch out ! You are going to fall off the bike.
h) I am sure your teacher will understand your problems. Don't worry.
i) No, I can't meet him this afternoon, I am going to visit my friend at the hospital.
j'espère ne pas m'être trompé. Quand on met au futur une partie de la phrase, l'autre parties est au présent. V+going to = futur très immédiat.
Tout petit doute pour la e) et la d), mais on ne sait pas ds combien de tps cela va arriver.....
Hope I helped
