Question

Me ajudem por favor!
In or on?
a) Sally spent vacation ______ the beach.
b) I used to live ______ London before moving to Brazil.
c) Don't throw paper ______ the floor.
d) I will travel ______ July.
e) Muito parents are ______ the United States.

Answer 1

a- on
b- in
c- on
d- in
e- in 
espero ter ajudado :)