1.If you (be) busy, I (leave) you alone. 2. If I (live) in Moscow, I (visit) the Tretyakov Gallery every year. 3. If I (get) a ticket, I (go) to the Philarmonic. 4. If I (live) near a wood, I (gather) a lot of mushrooms. 5. If my father (return) early, we (watch) TV together. 6. If she (know) English, she (try) to enter the university. 7. If my friend (come) to see me, I (be) very glad. 8. If mother (buy) a cake, we (have) a very nice tea-party. 9. If we (receive) a telegram from him, we (not, worry). 10. If you (not, work) systematically, you (fail) at the examinations.