Заполните пропуски, употребляя глаголы в скобках в Present Perfect.
1. I _____ (already/to finish) my homework.
2. He ____ (read) that book several times.
3. My girlfriend _____ (to watch) this film time and again.
4. Ann and Den ____(to be) here for an hour already.
5. Mary ____(to know) her since childhood.
6.How long ____ they ___ (to be) here?
7.We ___ (to live ) in London for a few years.