Ответ:

1) I have already tidied up my room

2) She has never eaten candyfloss

3) He has just gone souvenir shopping

4) We have not read this book yet

5) They have travelled Europe 3 times

Объяснение:

Ex 3

Have you just arrived?

She hasn't pack her suitcase yet

I have been to an adventure camp before

Have you ever shaken hands with cartoon characters?

I have never seen a robot

Ex 4

есть сладкую вату

заниматься покупками сувениров

Отправляться в полет в пиратское путешествие

осматривать знаменитые достопримечательности

жать руки героям мультфильмов

исследовать дом, населенный привидениями

кататься на американских горках

Упр 1

1) has finished

2) has scored

3) have watched

4) has run

5) has bought

6) have lost

7) has written

8) have eaten

9) have watched

10) have started