Use the cues to make sentences in the present perfect

I. Use the cues to make sentences in the present perfect 
1. I/ buy/ a laptop/ but I/ not use/ it.
2. I/ write/ a blog/ but I/ not upload/ any photos to it.
3. We/ start/ the game/ half an hour ago/ but we/ not finish/ it.
4. My dad/ be/ to London/ but he/ not see/ Big Ben. 
5. I/ read/ my English book/ but I/ not do/ my English homework.
6. They/ have/ lunch/ but they/ not have/ dinner.
7. I/ download/ some songs/ but I/ not listen/ to them.