2)Have they built a new gym?
No, they haven't built a new gym. They have built a new awimming pool.
3) Has Sam bought a coat?
No, he hasn't bought a coat. He has bought a shirt.
4)Has Julie argued with her parents?
No, she hasn't argued with her parents. She has argued with her best friend.
5)Have they lerned Spanish?
No, they haven't learned Spanish. they have learned Italian.
6)Have you done Exercise 6?
No, I haven't done Exercise 6. I have done Exercise 5.