ПОМОГИТЕ ПОЖАЛУЙСТА!!! :)
John ... (trip) and ... (cut) his knee as he ... (walk) up the volcano. Martin ... (not/reach) the crater yet. Look at the volcano. Huge rocs ... (expolde) out of the crater! They ... (go) volcano surfing tomorrow. Luke ... (work) hard for the last three weeks. We ... (leave) for Chile next Monday. People ... (look) at thr volcano as lava ... (flow) down during the eruption last night.