Fill in is, isn't, are, aren't.

1.

Am I going to become an astronomer? — Yes, I am./No, I'm not.

1. Are you (ты) going to write articles? — Yes, you are./No, you aren't.

2.

Is he going to invite all his classmates? — Yes, he is./No, he isn't.

3.

Is she going to warn them? — Yes, she is./No, she isn't.

4.

Is it going to jump over the fence? — Yes, it is./No, it isn't.

5.

Are we going to buy presents? — Yes, we are./No, we aren't.

6.

Are you (вы) going to travel next summer? — Yes, you are./No, you aren't.

7.

Are they going to enter the university? — Yes, they are./No, they aren't.

Ответ: am, are, aren't, is, isn't.