Some pre-school children go to a day care center,____ they learn simple games and songs.
Mom used only half of the money, the rest of which ______ saved for other purposes.
As he reached _____ back door, Jack saw _____ strange sight.
Between the two parts of the concert is an interval, ______ the audience can buy ice-cream.
––Linda didn’t invite us to the party.–– ______? I don’t care.
---It’s a long time since I saw my sister.--- ______her this weekend?Why not visit B. Why not to visit C. Why not visiting D. Why don’t visit