1.nick (to feed) yet? - not yet. 2. as we had agreed ellen (to be) to buy flowers and wait us at the bus stop. 3. if she (not to hear) the news she wouldn't have gone there. 4. the boy didn't know that water (to boil) at 100 degrees. 5. in the room he could see a man (to sit) in an old armchair.

1) Has Nick fed yet? - not yet.
2) As we had agreed Ellen was to buy flowers and wait us at the bus stop.
3) If she doesn't hear the news she wouldn't have gone there.
4) The boy didn't know that water boils at 100 degrees.
5) In the room he could see a man sitting in an old armchair.