I think Mrs. Stark could be _______ between 50 and 60 years of age.

The children are giving their classroom a good cleaning, ___ are sweeping; ___ are mopping. 

 When the Greens moved into the house last week, ____was at sixes and sevens, so they did a big cleaning.

As a student, I’d prefer _______ if I didn’t have to do so much homework.

It was ______ fine weather that many people went out to enjoy the warm sunshine.