is that your sister变为负数句 ——　—— your sisters?

Is that ( ) your sister What was wrong with your sister的同义句what —— —— your sister Are that your sisters? 把下列单数句变成复数句或复数句变为单数句 1 is that your sister?yes,she is.2 this IS THAT YOUR SISTER?(作否定句） is,your,that,Kate,sister连词成句 —Is Jane your sister?—Yes,_______is —Is（ ）your sister?—Yes,( ) is.A.this;he B.that;it C.she;it D — Hi, Tom. Is your sister as active as you? Is that his sister?变为复数句 This is your sister That is my What’s your sister like?—_______.