When the Greens moved into the house last week, ____was at sixes and sevens, so they did a big cleaning.
Robots _____more heavy work for us in the future.
______ month of the year is May.
We don’t want to speak badly or ______ in front of the class.
Mo Yan is one of _____ writers in the world.
--- Is there_____ beef in the fridge? --- No, there isn’t. There is ______ pork.