1.This is( )key and that is( )eraser.2.—Is that a baseball?—( )3.This is not( )watch,

问题描述:

1.This is( )key and that is( )eraser.2.—Is that a baseball?—( )3.This is not( )watch,
I think it's( )4.—What's that?—It's( )ID card.

1.This is( a )key and that is( an )eraser.2.—Is that a baseball?—( Yes,it is ) 3.This is not( my )watch,I think it's( yours ) 4.—What's that?—It's( an )ID card.