If you keep learning English for half an hour each day,your English will be gradually improved.( )
at least
at present
at once
at first
--__________ does your school have a sports meeting? – Every year.
There are ______ workers in the shoe factory.
Tom was fat last year, and now he is ______ .
The plane will arrive ______ Shanghai ______ 8:00 _____ the evening of September 10.
--Do you know ________ woman in red over there ? --Yes. She is ________ office worker.