21．--How long ______ in Paris?
--I’ll be there for just two days and have to be back for an interview next Saturday.
A. have you stayed B. are you staying C do you stay D. did you stay
22. ______ his age, he was considered ______ well in the play.
A. Considering; to have acted B. Considering; acting
C. Considered; acting D. To consider; act
