You will be good to learn
1. At
2.On
3.At
4.On,at.
5.On
6.On
7.On
8.On
9.On.
10.In.
1. Is Neznaika funny? Yes, he is.
2. Is Baba Yaga friendly? No, she isn't.
3. Is Ivan brave? Yes, he is.
4. Are Leshiy and Vodanoy evel? Yes, they are.
5. Is Artemon silly? No, he isn't.
6. Is Malvina nice? Yes, she is.
7. Are Fox and Hare good friends? No, they aren't.
8. Is Nastenka kind? Yes, she is.
42. I think we'll meet tomorrow.
43. I haven't seen her for a long time, but she will return from France tomorrow.
44. My laptop was broken yesterday, so I am buying a new one.
45. I promise I'll do my homework.