My brother is Dave.(改为一般疑问句)
___ ___ brother Dave?
This is my friend,Mary.( 改为否定句)
This___ ___ my friend,Mary.
My brother is Dave.(改为一般疑问句)
___ ___ brother Dave?
This is my friend,Mary.( 改为否定句)
This___ ___ my friend,Mary.
Is your brother Dave
This is not my friend,Mary
Is your
is not
is ur
is not