2. Open the brackets to complete the sentences 1. I (be) in the country three weeks ago.2. I (be) in London for one month.3. We (live) in Ust-Kamenogorsk since 1991.4. They (live) there in 1991.5. My mother (have) a party last month.6. She (have) these books for a long time.7. He (see, not) his cousin for years.8. The pupils (see) their teacher y esterday. ​