无师自通的意思是什么:he was asked by the President of the United States

he was asked by the President of the United States when he was asked how he liked about the paintings when he was asked how he liked about the paintings when he was asked how he liked about the paintings He remembered ____Rosa was taken away by the plice he was asked to do the experiment at once 怎么译 When he heard the terrible noise he asked me what was __on. Ahappening B taking C getting D.going he was too tired ,so he asked his mother not ( ) for the first time he was struck by the expression,sympathetic yet searching,in her eyes. The policeman was wounded ___, but he caught the robber by ___.