Ответ:

C.

1. Charlie has travelled to Africa three times.

2. Have you ever been camping?

3. My sister hasn't tasted Chinese food before.

4. Martha has always wanted to have a pet.

5. Jack and Nelly haven't written to us from Mexico yet.

6. Julie hasn't decided wat to do yet.

7. I have invited twenty people to my party.

D.

1. Clara has already had dinner.

2. Mike has never been to England.

3. Have you sent an e-mail before?

4. Julie hasn't visited Rome so far.

5. Bruce has always wanted to become an actor.

6. My brother hasn't watched Angelina Jolie's new film yet.

7. Have you ever sprained you ankle?