Làm giúp mk với :( mk cảm ơn ạ ----- Nội dung dịch tự động từ ảnh ----- words. Use only the past simple or the past progressive. 1. when Don/ arrive/ we/ have/ coffee 2. he/ sit down/ on a chair/ while/ I/ paint/ it 3. the students/ play/ a game/ when/ professor/ arrive 4. Felix/ phone/ the fire brigade/ when the cooker/ catch/ fire 5. while/ he/ walk/ in the mountains/ Henry/ see/ a bear 6. when the starter/ fire/ his pistol/ the race/ begin
