A、The Russian forces downed the plane. B、The Ukrainian forces downed the plane. C、No party was responsible for the crash of the

International investigators have published a photo of a large Buk missile component found at the MH17 airliner crash site eastern Ukraine. The Joint Investigation Team (JIT) image shows a "Venturi", which emits propellant gases, like a car exhaust. Dutch prosecutors want more information from Russia about the Buk, which they say killed 298 people aboard Malaysia Airlines Flight MH17.
    The West and Ukraine say Russian-backed rebels fired the Buk missile. Russia argues that Ukrainian forces downed MH17. The Boeing 777, en route from Amsterdam to Kuala Lumpur, crashed in rebel-held territory. The JIT interim report explains the progress of the criminal inquiry.
The experts are studying a mass of tiny fragments retrieved from the crash site.
    Last year, a Dutch Safety Board report concluded that MH17 was downed by a Russian-made Buk, but did not say who fired it. Board president Djibbe Joustra said at the time that the rebels were in charge of the area from which it was fired.
Question 3 and 4 are based on the news report you have just heard.
3. Where did the MH17 airliner crash?
4. What did Board president Djibbe Joustra suggest at the end of the news report?