2. 1) a surgeon, 2) leeches, 3) quinsy, 4) a recovery room, 5) a psychiatrist, 6) scald.
3. 1) are used, 2) was taken, 3) were discovered, 4) was sent, 5) were bougt, 6) always are made.
5. 1) woun't you, 2) aren't they, 3) should he, 4) was he, 5) hasn't she, 6) didn't he