1. 1-broken 2-came 3-drove 4-eaten 5-flew 6-forgotten 7-gave 8-gone 9-wore 10-written
2. 1-you have made a mistake 2- it has started to rain again 3- Who’s eaten the sweets 4-She’s not found it 5-They’ve not done anything 6-He’s not answered my letter 7-What has happened 8-We’ve not had launch
3. 1-has written 2-have sold 3-have seen 4-have done 5-have made 6-has given
4. 1-haven’t heard. 2-hasn’t seen 3-haven’t eaten 4-haven’t worn 5-haven’t forgotten 6-haven’t spoken
