After the heavy snow, many students helped to clear away the snow ______ in our school.

New digital mobile phones definitely produce less radiation, but that doesn’t ______ mean that they should be used without caution. 

I can spare you only a few minutes. Just tell me ____what happened.

I’ve never seen ＿＿＿＿＿＿＿ film as this. 

An American girl survived the plane crash that killed the rest of the passengers _____.