She is very ill but the doctor doesn't know what it is(что надо вставить в сместо точек . )

she is very ill but the doctor doesn't know what  illness it is (заболевание)

1) i'm a happy owner of my own house.2)i built it myself.

3)my house is a very big mansion.

4)it's a modern house.

moscow- the capital ofthe russian federation,federal city,the administrative center ofthe central federal districtand moscow region, of whichis not included.the appearanceof a city, as well asthe namesof manycities in the world,associated with the nameof the moskva river, whichborethis namelong before thesettlement.the oldestsettlementon the site ofmodern moscow,probably arosein those days,when they began todeveloptradeandcommercialrelationsbetween north and southof the russian plain.this was facilitated bymoscowlocationat the crossroadsbetween the balticdvinaandnemananddniepertothe uppervolga and thedon,the shortest routebetween themwasthe river valleysof moscowandklyazma.itwas foundedmoscow.