mude para as formas negativa e interrogativa
Soluções para a tarefa
a) interrogativa: have meteors crashed against the...?
negativa: meteors have't crashed against the...
b) interrogativa: has the moon been a mistery?
negativa: the moon hasn't been a mistery.
c) interrogativa: have scientists tried to reproduce?
negativa: scientists haven't tried to reproduce.
d) interrogativa: has the studied astronomy?
negativa: he hasn't studied astronomy.
e)
interrogativa: has helen written a letter to her:
negativa: helen hasn't written a letter to her.
f)
interrogativa: has the researcher sent the information to the newspaper?
negativa: the researcher hasn't sent the information to the newspaper.
g)
interrogativa: have they found a new form of radiation?
negativa: they haven't found a new form of radiation.
h)
interrogativa: has he been to new york three times?
negativa: he hasn't been to new york three times.
i)
interrogativa: have the johnsons tried to call you since 7 o'clock.
negativa: the johnsons haven't tried to call you since 7 o'clock.
j)
interrogativa: has ann solved this problem many times?
negativa: ann hasn't solved this problem many times.