3. Underling the correct item.
19) Mike is flying / will fly to Paris on Monday.
20) The doorbell is ringing. I will / am going to answer.
21) We haven't got any oranges. Will you buy / Are you buying some?
22) She is tired. She will / is going to sleep early tonight.
23) It' s too cold. I will / am going to close the window.
24) Ann is visiting Paris. She will / is going to see the Eiffel Tower.
25) My mother is going to / will buy a new car next week.