Valitse yleisperfekti tai kestoperfekti.

1. a. Have you seen / b. Have you been seeing this article?
a b

2. Researchers a. have found out / b. have been finding out that overweight can set on early puberty.
a b

3. Scientists a. have studied / b. have been studying these things for a long time.
a b

4. Young people’s lives a. have definitely changed / b. have definitely been changing.
a b

5. Even nine-yeard-olds a. have started / b. have been starting to talk about ”dating” and ”boyfriends”.
a b

6. My niece Holly – she’s twelve – says she a. has gone out / b. has been going out with Damien since they were ten.
a b


7. What has the world a. come to / b. been coming to?
a b

8. I don’t know, dear. But while you a. have talked / b. have been talking, 9. a. I’ve got / b. I’ve been getting hungrier and hungrier. How about dinner?
8. a b

9. a b

Oikeat vastaukset ja niiden selitykset