1. was / it / birthday. / Yesterday, / my
Yesterday, it was my birthday.
5. models. / make / The students / didn't / the
The students didn't make the models.
11. some / ate / They / ice-cream.
They ate some ice-cream.
9. about / They / a book / made / dinosaurs. / the
They made a book about the dinosaurs.
10. postcards. / The / bought / children / some
The children bought some postcards.
3. posters. / didn't / They / buy
They didn't buy posters.
2. museum. / to / My / class / the / went
My class went to the museum.
4. old songs. / heard / They / the
They heard the old songs.
8. hear / dinosaur model / They / didn't / the / roaring.
They didn't hear the dinosaur model roaring.
7. go / the / to / She / didn't / theater.
She didn't go to the theater.
6. eat / fruit. / didn't / They
They didn't eat fruit.