Ответ:

a) I haven't finished my homework yet.

b) I have already done my homework.

c) I have just finished my homework.

d) He has already gone home.

e) Mark has just come back from France.

f) They have just bought a new house.

g) We haven't had lunch yet.

h) The train has already left the station.

i) Has the train left yet ?

Объяснение:

надеюсь помогла:)