Перепишите предложения в present progressive или present perfect: 1. he has already (to learn) the rule. 2. i am (to write) an exercise. 3. what is he (to do)? — he is (to read) a newspaper. 4. have you (to | read) any stories by jack london? 5. what are you (to do) here? — i am (to write) a letter to my friends. 6. who has (to write) this article? 7. what language are you (to study)? 8 we have already (to learn) a lot of english words. 9. what is she (to teach) them? 10. who has (to teach) you to do it? 11. he has just (to do) something for us.