1. a)  did you talk to your friends all day?  

b) angela didn't walk to school yesterday

c) ezequiel didn't feed his dog this morning

d) did felisberto enter to the class late

e) this students studied for the test

f) tertulia didn't wait a long time for you

g) the bird flew

h) did you forget your pencil case at school?

i) you didn't live in bahia years ago

j) did joaquina eat in a restaurant yesterday

2. a) did not sleep

b) sang

c) did not lend

d) did/sell

e) did not show

3. a) studied

b) did not find

c) did/see

d) did not travel

e) did read