--- Why don’t you ask him for help? You _____ be good friends.--- We have disagreements and we haven’t talked to each other for a long time.A.are used toB.are used forC.are used asD.used to
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D解析试题分析：be used to sth习惯于某事;used to do sth过去常常做某事.句意:你为什么不向他去求助？你们过去是好朋友啊！——我们有分歧并且我们有好久不说话了。故选D。考点：used to用法
点评：used to用法比较固定，需要注意use还可以作为被动语态使用，sth be used to do sth某物被用来做某事。