下列各组字母中全部是元音字母的是 ____。A. a, e, o, r B. a, i, u, e C. o, u, e, n
They arrived while we__________ dinner.
---Shall we meet on Sunday or Saturday? ---______ is OK. I’m free on weekends .
—You were brave enough to say “No”at the meeting. —Well,now I regret________ that .
My mother is sleeping .Don’t _________.
I like playing _________ piano. I also like playing ______ football.