To master a language，one must be able to speak and understand the spoken language as well as to read and write．Lenin and his wife Krupskaya translated a long English book into Russian．But when t
—— Did he notice you enter the room?—— I don’ t think so.He＿＿＿＿＿to the radio with his eyes shut.A.listened B.was listening C.has listened D.had listened
