Me ajudemmm prfvvv é pra agr

Resposta:
a) couldn't
b) A: can B: can
c) couldn't
d) A: could B: could
e) can
f) A: could B: couldn't
Resposta:
a) couldn't
b) Can, can
c) couldn't
d) Could, can
e) can
f) Could, couldn't