Ответ:

b) Tim is saying goodbye to his friend

c) I'm not drinking a glass of lemonade

d) Sabira and Sultan are cleaning their house

e) They aren't having lunch in the cafe

f) The children are making a terrible nise outside

g) He isn't doing anything at the moment

h) Nurlan is doing an evening course at the moment

i) My brothers are planting trees in the garden now

j) We're watching a comedy on TV