a number of children playing on the playground.the number of
Look!( )children( )playing on the playground.A:The number of
a number of children playing on the playground.the number of
A number of students ________ playing on the playground, and
A large number of students are on the playground,playing bas
Look!A number of students ____(be) on the playground.
the number of,a small number of,a number of.
—A number of students ____ on the playground.
a number of the number of
the number of与a number of
A number of children
the number of、a number of、large number的区别
A c( ) of students are playing basketball on the playground.