1. Why you (to smoke) in the room?
2. She (to read) the whole evining yesterday.
3. What you (to look) at? I (to look) at this monument.
4. He (to write) the article all the week.
5. Yesterday he (to lell) us for two hours about his trip to India.
6. I (to learn) to ride a bieycle now.
7. We (to work) at this problem during three months.
8. Be quiet, he (to write) a composition now.

1)why are you smoking in the room?2) has been reading3)are you looking, I'm looking4)has been writing5)has been telling6)I'm learning7)have been working8) he's writing