2 Rewrite the sentences using the full or contracted forms of the present perfect. I've lost my purse. I have lost my purse. She has written to me. She's written to me.
1 You've made a mistake.
2 It's started to rain again.
3 Who has eaten the sweets?
4She has not found it.
5 They have not done anything.
6 He hasn't answered my letter.
7 What's happened?
8 We haven't had lunch.
9 What have they done?​