—Hi, Jack!—Hi, Eric! You ________ really quiet, but now you are very outgoing.A.used toB.use toC.used to beD.use to be
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C解析试题分析:根据句意:你过去常常是很文静的,但是现在你很外向了。故选C.考点:used to do 句型用法
点评:be used to do sth被用来做某事;be used to doing sth习惯于做某事及used to do sth过去常常做某事,是中考必须掌握的基本语言点。其中,used to do sth表示过去常常做某事而现在已经不这样了。