N1
a - shouldn't
b - should
c - should
d - shouldn't
e - should
f - should
g - should
h - shouldn't
N2
a - I have a toothache - I should go see the dentist
b - My leg is broken - i should go to the doctor
c - I'm tired - i should have a rest
d - I want to lose weight - I should exercise more often
e - My friend is pregnant - she should have a good rest
f - I am diabetic - I should be careful with sweets
g - My friend is ill - I should bring him something