When making a call, sometimes there will be something wrong with the phone or telephone line. At this moment, you can NOT say:

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• From Sunzi’s warning， we can infer that sometimes a war could be declared just because（）.
• One aspect of Chien-an poetry that has sometimes been singled out for praise is its so-called（）.
• Trying to kep youself in the game and stealing a point from your opponent can sometimes be an embarrasing thing. ( )
• Sometimes you may make very fast progress in a foreign language, but sometimes it is a while（）hard work starts to pay off !
• The introduction should include the name,（）and sometimes the reason why the person is an expert on his topic.