Завтр апроверочная по подскажите 4 : составить предложения 1.where/doesn’t know/buckinghan palace/is situated/sam 2.mary/how many ravers/can’t say/live/in the tower of london 3.don’t know/money/is/i/whose/it 4.she/say/why/they/every day/can’t/there заранее

Sam does not know where is situated Buckinghan Palace.
Mary can't say how many ravers live in the Tower of London.
I don't know whose money it is.
They can't say why she is there every day. В последнем не хватает глагола связки IS. если его в задании не дано, то тогда я не знаю