Ответ:

1 They have never gone to the United States.

2 He hasn't done his homework

3 What have you done to your hair?

4 She has had many adventures in her life.

5 I have seen that film three times.

Объяснение:

1. They have never gone to the United States.

2. He hasn't done his homework.

3. What have you done to your hair?

4. She has had many adventures in her life.

5. I have seen that film three times.