4.

a) Guljan didn't drink milk.

b) My mother didn't do morning exercise.

c) Kairat didn't break his arm.

d) I didn't make a cake.

e) We didn't visit an art gallery last weekend.

f) She didn't buy a T-shirt and jeans for the party yesterday.

g) As a child he didn't like playing tennis.

h) His parents didn't watch a film on TV last night.