Exercise 1 from Page 18:
注意have/has后要接动词的过去分词
2.She has checked the lights.
3.She hasn't cleaned the stage.
4.She has bought the make-up.
5.She has sold all the tickets.
6.She hasn't taken the costumes to the theater.
Exercise 2 from Page 18:
5.haven't taken
Exercise 2 from Page 19:
4.She hasn't had a bike before.
Exercise 3 from Page 19:
3. I haven't gone to bed yet.
Exercise 3 from Page 23:
3.have never eaten
4.Have you ever painted
6.hasn't given
Exercise 2 from Page 24:
4.celebrate
Exercise 3 from Page 25:
2.wealth 3.comfort 4.hospitality