【单选题】____ to the doctor right away, he might have been alive
【简答题】He might not have been killed in the traffic accident yesterday if he (fasten) ______ the seat belt.
【单选题】He might have been killed ______the arrival of the police.
【简答题】He might have been killed in that car accident yesterday if he (take) ______ part in that activity with the team.
【单选题】_____right away , he might have been alive today .
【单选题】He might have been killed _________ the timely arrival of the ambulance.