Resposta :
Resposta:
6
a) must
b) can't
c) don't have to
d) have to
e) Could
7
a) used to
b) is used
c) didn't use
d) used to
e) used to
Explicação:
Resposta:
6
a) must
b) can't
c) don't have to
d) have to
e) Could
7
a) used to
b) is used
c) didn't use
d) used to
e) used to
Explicação: