用in , on , at 填空

Question

my uncle usually goes fishing () the weeked、
the story happened () a cold winter morning
my friends give me some presents () christmas every year
sandy always goes to the library () mondays

Answer 1

1.on
2.in
3.on
4.on

Answer 2

1.in 2.on。3.at 4. on

Answer 3

my uncle usually goes fishing (on) the weeked、
the story happened (in) a cold winter morning
my friends give me some presents (at) christmas every year
sandy always goes to the library (on) mondays本回答被提问者采纳

Answer 4

in
on
in
in

Answer 5

at at at at