Use simple past or present perfect to complete the following sentences

Exercise : Use simple past or present perfect to complete the following sentences:
1. Her English [ improve ] __________ recently
2. How many pages __________ you [ read ] ___________ so far ?
3. We [ finish ] ___________ our homework two hour ago
4. _________ you [ be ] ___________ to Rome ?
5. I [ see ] ________________ him several times on TV
6. What ___________ you [ do ] ___________ last night ?
7. This is the first time I [ visit ] _______________ the city
8. They [ buy ] _______________ the garden some days ago
9. I [ learn ] ______________ English since I [ be ] __________ 11 years old
10. Be careful ! I [ just clean ] _____________ the floor
11. The meal [ already be ] __________________ ready
12. I [ never read ] ____________ an interesting story like this before