Помогите с Английским, все задания на листочкеPut the words in order.a

1
b do you think they can see us?
d I dont think this answer can be correct (чесн не знаю куда the пихнуть)
c the experts say the climate may get warmer 
e The lights must be on because they are at home
f  Im not sure but you could be right
h the results cant be right because they are too high
2
b could
c cant
d could
e might
f cant
g cant 
h must
i can
j must
k cant
3
b can
c can
e may
f can
g can
h may
i can not
j can not
k may 
4
b Could you swim when you were younger?
c That can be her car over there. (...)