She's going to meet us on Saturday afternoon. (Correct) I play tennis and football. OR I'm going to play tennis and football. (to make it correct) I'm happy because you are going to come to my house. (Corrected by adding "are") They're going to travel around South America. (Correct) We are going to get to the sports centre by car. (Corrected by adding "are") I hope you have a lovely time in my town. (Corrected by removing "go" after "hope" and adding "have" before "a lovely time")