—Daddy,can you come home for supper with us this weekend?—________,but I might be a little late.
-- ______ you______ your homework yet? --Yes, I _____ it just now.
Mary ________ to see the films because she __________ it twice.
His father _______ for years.
His father in this factory since he here in 1980.
The supermarket provides customers _____ plastic bags for free.