1 Jack have bought a new car  
2 when has he bought it 
3 i just have painted the bench in the garden 
 4 We visited them several times 
 5 We did not went to bed early last night 
6 She has finised her work in 1999
7 Have you seen an elephant ever 
 8 Laura never was in France 
 9 I have gone to Spain twice 
 10 My sister not learnt to read yet