1) Has Sarah answered your e-mail?
2) You haven't worked very hard. You should try harder.
3) Why are so many people here? What have
happened?
4) I have finished university and started working now.
5) My parents are coming this weekend. They haven't seen my new flat before.
6) Thank you so much! You have helped us a lot.
7) Has Annie washed the dishes?
8) Have you traveled a lot in your life?
9) We have explained everything to them.
10) It`s nice to hear you but why
you haven't called me before?
11) Please stay for dinner. Tony has cooked a lovely meal
12) She have never met him before.
13) Have Tony and Jane arrived yet?
14) Somebody have just knocked on the door.
15) My dad has been to Germany 2 times.
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