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As high school students, it’s very important to keep ourselves ______ of what’s happening home and abroad every day.
A．to informB．informingC．informedD．be informed
C
考查非謂語動詞。本題考查keep sb. informed of sth讓某人隨時了解。句中用過去分詞作賓語補足語，故選C。
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