【2014年江苏省盐城市中考】UNICEF was ______in 1946. It works to help children live a better life.
I phoned Sarah last night, ______ there was no answer.
I always go skiing with my friends ______ winter.
The students are talking about ______ holiday plans happily.
Nobody knows ______ yesterday.
The park gates ______ at 10:00 every evening.