Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
watch the video and complete the sentences: present be+ing ou present perfect ?

at 0:04 Gromit (clean) the headlights.
at 0:05 Wallace (check) the noise
he (check) the headlights
he (check) the confort of the seats
he (check) the wipers yet.
he (check) the diesel engine
but he (check) the aerodynamics yet.
at 0:13 he (check) the lights.
at 0:24 he (check) the aerodynamics and
he (check) already the brakes.