There is a boy in the river. He ____ across the river.
A. is swimming
B. swimming
C. swim
D. swims
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The ____ are cleaning the room.
A. clean
B. cleaners
C. cleaner
The dogs are eating some ____.
A. the bone
B. bone
C. bones
Those ____ are sitting near the tree.
A. women
B. woman
C. womans
Some ____ are coming out of the building.
A. child
B. children
C. childs