Réponse :
Bonjour,
a. Tom isn't playing football in Central Park
(+) Is Tom playing football in Central Park?
b. Are they eating hotdogs?
(-) They aren't eating hotdogs.
c. It isn't snowing on Fifth Avenue.
(?) Is it snowing on Fifth Avenue?
d. I am having a great time at the MoMA.
(-) I am not having a great time in the MoMA.
e. They are visiting Harlem (2).
(?) Are they visiting Harlem?
(-) They aren't visiting Harlem.
