1) [?]? This is a plane.
2) [?]? These are cars.
3) [?]? His name is Lucas.
4) What do you do? [?].
5) Who's that boy. That boy is Jim. [?].
6) Who's [?] girl? That girl is Susy.
7) [?]? This is a book.
8) Twenty, [?], Forty, Fifty.
9) [?]? I'm fifteen years old.
10) [?] going on there? There's a voleyball game going on there.