This black umbrella is Mr Smith's.(改成反意疑问句的形式）

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• this black umbrella is mr smith's.改反义疑问句
• 用所给词的适当形式填空 1.Tom is a boy and空（be）damily name is smith.2.this空(be not)my pen.My pen is black.3.let‘s空（go）out for a walk,4.her key is in lost and 空（find）box.5.here空（be）some meat.按要求改写句子1.that is his crayon.(改为一半疑问句并作回答）空that空crayon?no,空 空2.there are betty's bags.（改为单数形式）this三个空3.there are ,many books in the library（改为同义句）there are三个空books in the library.4.this is her bag.（对划线部分提问）her划线空bag空this?5.the sweater is betty's.（改为否定句）the sweater空betty's.请尽快帮我
• This black umbrella is Mr Smith's.(改成反意疑问句的形式）
• this black umbrella is mr smith's.改反义疑问句
• This black umbrella is Mr Smith's.(改成反意疑问句的形式）
• 直线EF：y＝kx-k（k≠0）交AB于E,交BC于点F,交X轴于D,是否存在这样的直线EF,使得S△EBD=S△FBD?若存在,求出k的值；若不存在,说明理由?
• 心意很真诚的成语