Раскройте скобки,употребляя глаголы в требующейся форме так чтобы получить Present Continuous или Present perfect.
1)What are you (to do) here? - I am (to write) a letter to my friends. 2. Who has (to write) this article? 3. What language are you (to study)? 4. We have already (to lern) a lot of English words. 5.What is she (to teach) them?